Important thing to note, though, and why I don't block individuals anymore (instead I tag them):

Blocking a user doesn't prevent them from interacting or replying to your posts. It just hides everything they post or comment from you, as well as any replies afterward. It's a reverse shadow ban, because it makes it so you are the only person who can't see what they post.

I personally recommend just tagging them in red and feeling smug in your ability to ignore what they have to say.

Good call. If somebody comes at you with extreme hatred, just block them.