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.