Most likely, yes. Those with a different worldview are cut off from the fediverse and many client apps blacklist those instances that gain momentum from being usable in the client app. For example, Gab.
I haven't opened Gab in a while so I just loaded the front page, and I can see why Mastodon moderators don't want to deal with them either. The content is not as blatantly illegal as many other blacklisted sites, but the front page is incredibly toxic and hateful. I would block most of those posts if they woulf ever hit my personal instance.
Feel free to join (or set up) an instance that doesn't employ blacklists, though. The default Mastodon configuration comes with an empty blacklist so I'm sure there are servers out there that will let you access Gab and other blacklisted servers if you wish.
However, other servers are allowed to block you or your server at their digression if you're boosting or posting content they don't care for. After all, freedom of speech does not imply any obligation to be heard.
Nah. It tends to include neo-nazis, neo-confederates, racists, sexists, white supremacists, kiddy diddlers, and the like. It's not a particularly difficult group to not be a part of.
You might consider being concerned if your ideas and attitudes align with those of the aforementioned deplorables. And yes, that would be the correct term.
Edit: Calling people by the correct descriptive terms is not smearing. I'm sorry you are confused.
It all just boils down to a fig-leaf for your hatred.
I think that illustrates the way these things work pretty clearly.
I find this happens most often to people with a worldview that is objectively incompatible with civilization.
In case that is going to turn out to correlate with “worldview[s] that [are] objectively incompatible with [the other] civilization”, … what could it mean …
With some charity, you could say Gab has a different worldview. However, there are also people who think sex with children is ok. That is also technically 'a different worldview'. You see, there is a reason Gab has been cut off, and it is not just that he has a different worldview.
If you don't list the specific reason, you distort the most important part of this particular moderation. I noticed this is a fairly common myth in what seems like a right-wing frame of 'progressive politics trying to limit freedom of speech'.