Could there be a seventh element of harmony?

Thanks to Rarity's "Rarity Takes Manehattan" episode, which features a heavy-hitting of Rarity acting true to the element that she represents, at long last; I've looked back at the elements of harmony and the ponies that represent them, and how they've best or poorly represented those elements in past seasons. Carefully considering all of the 6 elements that have constantly been highlighted in almost every episode and the harmony they represent, I've come to the conclusion that there must be a seventh element; one that is often forgotten in the equation of friendship, and one that Celestia could've very likely overlooked, herself, when she and Luna collected the elements of harmony out of the tree of harmony.
Now, just hear me out.

It's probably a little too late to be 4 seasons in and suspecting that there's a 7th secret element still out there somewhere, that Twilight, her friends, and the celestial sisters all must've missed, but I think that one still being out there actually makes a lot of sense.
Has anypony every noticed that through the course of S1 - S3 that at times, the mane 6 are quite irrational and unaccepting of certain ponies/ griffons/ Zebras/ Minotaur and "pests" that while the show did eventually resolve, to some extent, never really felt quite like the ponies who resolved the issue acting in their element to reach that conclusion? Well I have. There's a very noticeable amount of episodes where the mane 6 have misguided fears, misconceptions, ect. about some other character or pest (like AJ did in "Bats!" or how the ponies reacted to Gilda in "Griffon the Brush off") and refuse to budge on the issue, and come to be accepting of the protagonist, instead of automatically seeking to reform him/ her/ them; never once did they stop to consider the consequences of trying to force change on a bully instead of trying to get to the root of why they're being a bully, or the consequences of trying to change the dietary habits of drive out something they think to be a pest. There's no acceptance toward the protagonists; except on the occasion that they be reformed like Discord or had been unjustly made out to be feared, like Zecora. Everyone else gets driven out of town, no questions asked.

I believe that this is due to the lack of acceptance- or the element of acceptance, in the first place. Friendship, while once obtained, can have a magical aspect to it; full of the elements of kindness, honesty, laughter, generosity, and loyalty, but what's the building block for friendship? Acceptance. Acceptance of others, and others accepting you, to create that spark which sets things in motion.

My theory is that What Celestial and Luna didn't know when they went into the Everfree forest to obtain the elements from the tree of harmony was that the Tree of Harmony bore seven elements, not six. Honesty, Kindness, Generosity, laughter, loyalty and magic made six. These elements were plainly visible embedded within the branches of the Tree of Harmony; and those six were the elements that Celestia took in order to use against Discord; to bring about an end to his reign of chaos over Equestria. But unbeknownst to the celestial sisters was that there existed yet another element. This element, as it was the most important, was carefully guarded by the tree itself; and remained hidden from anypony who gazed upon the tree and dared not look beyond. This obscured element was the very foundation of harmony and given its significance, lie not within the tree's branches, but at its roots; as as it was only through acceptance of others that the element itself exemplified the magic of friendship.


The existence of this element of acceptance was best shown in the Episode “Hearth's warming eve”, when the assistants to the three pony tribe leaders eventually come to realize that they don't hate each other and accept one another's company, and quickly become friends because of their learning to accept the other tribe; whereas the tribe leaders themselves, initially didn't.

I honestly think that the pony that best represents acceptance is Derpy Hooves. While some parents might not've accepted her character, the fanbase has, and I think that Derpy Hooves, as a pony- given her condition of Strabismus, surely has come to accept that about herself, as well, and be ok with being as different as she is; and has only learned to be all the more accepting of others as well, though they may have shunned her, because of it, surely. And I certainly would love a future episode where the writers and Hasbro can write Derpy back in and truly stress the importance of acceptance- to the parents and to the fans, and cement her importance as a character in the show as the bearer of the 7th element, acceptance, to prevent any further controversy. Because isn't acceptance of everyone, no matter what they look like, where they come from, or their ideals, like what we were shown in "Hearth's Warming Eve" what the kiddies should be really learning? Isn't acceptance the true spark that fosters the magic of friendship?

 

I'm not saying the series shouldn't have conflict, as that's how the storyline progresses and character development gets done. There's just such a glaringly obvious lack of acceptance displayed by the ponies that I've seen re-watching the series and catching things I've missed before. The go to answer is usually “if you don't like how this pony/ pest is acting, change them first, against their will, without stopping to consider why they're like that and trying to accept them, flaws and all, because that's what makes them, them.” Case in point, again, Derpy. Another case which was seen actually handled by the ponies- Discord. He's supposed to be the embodiment of chaos. The ponies didn't like who he was, and they turned him back to stone- just for being himself. And then tried to change him by reforming him when he wasn't evil to begin with. Another example- the parasprites. The ponies didn't like how they behaved, when the sprites were simply being themselves. Solution: change them forcibly by casting a spell and getting them to eat something they normally wouldn't- the town itself- thus resulting in further damage. Another example, the Vampire fruit bats. Same thing they did with the Parasprites.


Nopony in the show even tried to ACCEPT that someone or something is like that way for a reason, and automatically tries to change them to suit their own preferences. Yes, not all efforts of acceptance will work out for their benefit, but the lesson itself is lacking in MLP and could still be present and create conflict at the same time, because there's always a line to be drawn with acceptance.


I don't know about the seventh element being friendship, because well, look at the name of the show. Friendship is magic. So technically the element of friendship is Twilight's element, and her ascension into alicorn status proves it, because she's mastered the element; the magic of friendship. But as I said, there's more to friendship than the supporting elements of Twi's friends; because none of them have the element of acceptance, which is the building block of it all.
Not to mention it never made sense to me how there could be 6 elements and there being a rainbow between them when the elements are triggers at the same time, when rainbows have 7 colors in them