I'm not sure these things are mutually exclusive. I fully agree fighting fascism is more important than worrying about harming the neurodiverse community, and others, who identify as weird.
If folk think "weird" is disproportionately better to shame and humiliate those on the right who deserve such mockery than other words, have at it.
But I'm pretty sure we can get the same effect without the damage to our allies by substituting in "creep" or something similar, almost always.