Who's to blame? I'd say you, for caring. This is the way politics works now, and some software projects have, for some reason, joined the politics battle. By caring you're giving them weight. Just flip them off, tell them to go fuck themselves, and keep thinking the way you do.
It's not worth it to give up on your views on politics just to not be ostracised by these manchilds and circus freaks. They live off attention; if you don't pay attention to them they die. Don't give them any legitimacy, because most of those who take these decisions don't even know how to code and they are there to hijack the projects with their politics.