Because there is a pretty big group of tankies who literally are just maga version wearing "we're the left" patches...when in reality they're just authoritarians who can't see nuances for shit and think if anyone who disagrees with them should be put against a wall and shot. It's why hexbear was defederated and now more and more instances like hexbear who are realizing their echo chamber is being tuned out have built new instances and spilled into them.
Edit: and the tankie brigades are here to sling their useless downvotes onto comments that they don't like lol