I use Mint, btw.
Also that's kind of the point, anyone can host an instance, and those who pay for or maintain their own servers make the rules. That includes who they federate with. Those who are willing to host and maintain an instance tend to more active in social discussion, whether being a refuge for a social group (blahaj.zone for my example), a school of thought on any segment of the political spectrum, or just to host anything without questions.
Given the current atmosphere of hostility for members of my community's group, I am... quite apathetic towards your calls for us to "allow questioning" for things such as our rights to exist with a society respecting of our presence or self-defense.
This is not exclusively a circumstance for more leftist communities, by the way. Conservative platforms have similar inclinations to work with each other (alongside plagiarizing ActivityPub software work, such as Mastodon https://www.vice.com/en/article/truth-social-is-mastodon-trump/ )
TL;DR: make your own instance and federate how you would like with your userbase. Or find an instance that already shares your POV and has federated similarly. Or just use the block feature?