AITAH for getting mad at a group admin over another member?

So basically, I’m in an LGBTQIA+ Group Chat and it’s a safe space for people like me to talk about our interests and views but recently an admin added an “ally” t the group. The thing is, the admin is different around this ally (I’ll call him B). By that I mean the admin is ruder and acts more like a popular kid in a high school movie. I was messaging and the admin told me to shut up. I had previously left a different group because of admin (A) and B. As well as that, we have no other allies on the group and this one has had problems with me in the past. I messaged another admin (I’ll call her C) about this to see if B could be removed and she said no. Another member has been told that their art is ass by B and it upset them. C still refuses to do anything about it and when I vented on another group chat about the problem, C got upset.