Also, it's a meme not a nuanced political essay about dealing with nazism. Obviously JUST punching them isn't goint to work. Or at least not forever.

You can defeat particular group by force, but unless You deal with bigotry, nationalism and the material conditions that gave rise to it in the first place, the ideology will return in some form or the other

True, but you should not assume that they will.

And most importantly, you should never tailor your community around this assumption.