Isn't that the same accusation that people throw out about Lemmy.ml though? It's a reductionist meme at this point. If you honestly think the entire instance is a Nazi bar, why not just filter it out entirely instead of engaging with Nazis?
Like I said, I signed up for Lemmy.ml first. The admins rejected my application for reasons they would not disclose. I don't know if it's that they just didn't like my username/email or whatever, but I tried a couple times and got the same result each time.
I settled on Lemmy.world barring the first option, because I was tired of applying and waiting just to keep getting rejections, and a friend had told me this instance just accepts everyone. So I figured why not?
But why advocate cooperation and mutual support on the fediverse when we can just foster more infighting based on tribalism, I guess?