Yep, unfortunately, it's practical to block people who behave like trolls in advance, as people seemingly can't help but repost their annoying content.
Self defense. They are making significant real world changes that can change your plans if you, you know, interact with the world. Like traveling to another country, or saying things out loud. It's good to be prepared. The pace of those changes is at a historic high in the current administration. There's a sweet spot between being informed and obsessed, but it's sometimes hard to station keep.