At least you postet this in the right community.
I assume you aren’t trolling, so here is what will happen when implemented: After about two weeks you will have blocked everyone who isn’t you, your alt accounts or a bot.
“Creating an echo chamber” is said a lot when people talk about blocking, banning and defederating. Sometimes it is justified, sometimes it’s utter bullshit. What you suggest, blocking people because you don’t like how they vote, is beyond bonkers. And I say this as someone who at times can be quite trigger happy with the block feature.
PS: “Everyone but me is a moron” is the mark of the moron.
Ffs, I can’t go back to Terraria while I am preoccupied with wrapping my head around Factorios Space Age.