Dehumanizing dangerous idiots and even down right evil selfish people is still wrong even if they are a dehumanizing cult faction. And it still ends in a net negative for humanity. That does not mean there is not justified consequences for people that cause harm.

Many of the MAGA people I've talked to irl are really really dumb and gullible in general, if it's not MAGA it would be something else. People in power are using that as an attack vector to gain power.

Fascism has always been a movement of near slighted weaponized stupidity