Bluesky prioritized safe-space culture over free speech and decentralization. Interesting experiment but that's not what a Twitter replacement needs to be.
Nazis are also finding safe spaces on Reddit, Wikipedia, Telegram, Tinder and virtually all other large social sites if you care to look. Nazi safe space isn't exclusive to X.
Elon Musk sympathizes with Nazis and shares their views and his platform has been explicitly designed to cater to the extreme right and amplify that speech while purging the "woke mind virus."
When the Nazis show up to your bar and you don't kick them out, you have a Nazi bar. Elon didn't just not kick them out, he put up a big sign that said "Nazis drink free." Let's not pretend the site formerly known as Twitter is a politically or culturally neutral space in this regard.
Yes, I'm intentionally being facetious using "free speech" with the same implication that most people complaining about the lack of "free speech" on Bluesky or Mastodon do, which is to say the freedom to post racist right-wing propaganda and hate speech without consequence.
The only draw to being a Twitter replacement is not being like Twitter, which means not being a safe space for Nazi and Nazi-adjacent content.