No, the whole point of the fediverse is to combat censorship from fascists.
Inviting them over there is NOT good. It'll show more pro-fascist views and fool gullible people. And the more fascist instances there are, the harder to kick those out.
"Echo chambers" don't exist except on fascist forums.
You're saying you support it turning into a Nazi bar. If you want one, then go there, instead of being on Lemmy.