Since when is the ability for someone to say what they want to say on the internet, a bad thing? You don't have to agree with the sentiment that Hitler was right, but that doesn't mean migrating to a platform that bans such speech is the next best alternative. I'm also not pretending X / Twitter promotes free speech, but they are certainly better than BlueSky in that regard. Free speech is free speech and you might not like what someone else is saying, but I'm sure you hold dear the right to say whatever you want, whether others agree with it or not.

Edit: The people downvoting without commenting are exactly the type of people BlueSky attracts. They can't handle others having different opinions and need safe spaces carved out for them via moderation, but will willingly spout off their own opinions endlessly and complain about anyone that doesn't adopt their worldview.