No. Just no.
Islamists =/= Muslims
The honest comparison would be to ask if anyone who professes to be a member of Al Qaeda or ISIS, is considered a criminal by simple association.
And if they provide "material support or resources" (like organising/publishing/translating, at the lower end of terrorist criminality) they would be so.
Charitably, your comment reads that people who call themselves Nazis today are as far removed from (and do not bear the mantle of) the Nazis of WW2, as Muslims are removed from Islamist terrorists.
Again, charitably, that is an appalling comparison. Because it implies the reverse too; that Muslims are as responsible for the crimes of 9/11 as one believes modern Nazis are for bearing the history of the National Socialist movement - which of course they (modern Nazis) are.
More clearly: The perpetrators of 9/11 are only tangentially part of the same group as Muslims in general. You may as well group these NeoNazis with the set "Americans", or "White Men", as their motivations have as little bearing as regular Muslims and the men who brought down WTC.
As before, the better comparison is to ask if non-violent members of ISIS or Al Qaida can be assumed criminals/terrorists, as their violent companions are.
You know why I made that comparison, because someone was saying arrest them just for associating with the group, I was showing how it would apply more widely, indeed it could apply to people who associate with BLM, it is terrible to throw away due process like that.
I think that the people who carry swastikas and the like are morons, who have a fantasy view of what actual Nazis were. They are certainly not part of the Nazi Party, because it died at the end of WW2. If you think my view of them is wrong, then please correct me.
We literally declared war against them, and killed them wholesale. Are you saying we should stop declaring war against Nazis?
Except we didn't kill them wholesale. The United States pardoned or looked the other way for lesser Nazis and Imperialists in Japan to run their respective postwar governments. How do you think these countries functioned after the war? It's not like they systematically shot every remaining Nazi.
Look up Operation Paperclip.