> the belief that men can become women

To be more charitable: people should really read more and try to understand more about the difference between biological sex and gender. Many people think there is no difference and that's why they have such a reaction: "but they are trying to change something fundamental about biology!".

I used to have trouble with it as well, coming from a more traditional society.

As for the other wacky beliefs: they are mostly exaggerated. When talking about police, most leftist I know don't _literally_ want to just dismantle the whole thing and replace it with nothing. The point is to highlight the absolute lousy state of affairs, more than it is to discontinue the notion of policing.