Dude it's an open protocol. You wanna dunk on the libs? Spin up a server. Presumably if you're on HN long enough to want to make a new account solely to bitch about the Fediverse's overall political stance then you have the skills to run one. Mastodon, Pleroma, Misskey, whatever, as long as it speaks ActivityPub it's on the Fediverse. Find new people who feel the same way by using #fediblock as a suggestion of people to follow, instead of people to block.

But the Fediverse is not one monolithic network. And nobody is obligated to listen to a single thing you say. So if you start hassling a bunch of people who are there to talk to their friends while also being openly queer, non-white, and liberal, then you'll start racking up the blocks. Keeping a community healthy involves kicking out people who want to destroy it, too.