Yeah I totally get it. I roll my eyes at that stuff too, and it can affect immersion to varying degrees. I have no problem in principle with people taking issue with it, or even not wanting to watch or support it on the basis of it. What I just don't usually have any patience for are those people who really revel in hating the projects and who seem so genuinly and gleefully spiteful and bitter to the point that they actively celebrate setbacks in the project. Not liking that modern 21st century American social justice values are affecting the immersion of your ancient-alien-galaxy-fantasy franchise is fine in my opinion, but if ALL someone talks about is the behind-the-scenes politics of said franchise, and with a constant tone of pure spite, it just makes me not want to listen to that person.
On some level, I even understand those people. That bitter instinct can come out in all of us, me included, especially when you care. I just don't like when it happens, or like watching it happen in others.