So as Deejay said, it is HIS group, so he can block you. That's just the way Facebook works.

Some feedback on the situation. So, first, the guy says something inappropriate. You call him out on it. According to you, he apologizes. Here's where I see something that could have possibly produced a different result. After he apologized, instead of accepting the apology and moving on, you insisted that he was a sexist and insisted that he saw that. It was unlikely he would see it, when presented in that way. The best you could do is point out how his actions were perceived, and when he apologized, thank him for respecting your views. Instead, it seems, again as an outside that I am, that, to me, you wanted to be right. So you engaged in arguing with him on whether or not he was a sexist.

I cannot say whether or not he is a sexist, but people very rarely change because you call them out. You have to ask "what is the result I want." Was the result you want for him to admit he was sexist? Was the result you wanted was for him to fix the woman's handle in the group? He did the latter after you confronted him. So he had some respect for your feelings. It's unlikely that he would just admit he's sexist ever. The most you could do is get him to understand how his actions make you feel, and then it's quite possible that he would not want to hurt you, so he would refrain from those comments.

I don't know you. I do not know exactly what was said or what happened. This is just feedback based on how I interpreted what I read.

I'm sorry you lost your group. There are many support groups out there. And I hope you find a new one.

Seesaw