Just as I said, the creator and I spoke privately, and we have reached an amicable conclusion! :D

Both of our points were unproveable from either side, and thusly, I have offered her the benefit of the doubt, extended an olive branch and apologized. 
I'm sorry how I handled this situation, there was a lot of high tensions, and I know I haven't always been able to handle stress well with my depression spirals. 
I'm sorry about the wording I said, the wrong words I used, I didn't mean them like that all at 8,) 

I have reached out for an apology as well for transphobic/sexist statement and am waiting on a reply to that. 
That being said!! I didn't invent ita plushies, nor backpacks! And I'd love ALL OF YOU to make your own plushie ita backpacks! Be inspired and create! 
Please do not attack anyone or anything, I don't want to keep spreading negativity, and I'm sorry for anything misinformed or misinformation I said. I'm trying to get better and change as a person, I want to be a better artist, a better creator, and a better human overall. I know I'm not perfect, and I make tons of mistakes...but, I do genuinely want to get better as a whole. Neither of us could prove the other wrong, and so, I should have just given the benefit of the doubt, I'm sorry. 

The other creator seems like a good person, and I'm glad we've been able to talk through this and be friends! :)