I'd argue that Antifa shouldn't be classified as a terrorist group - not out of respect or defense for the antifascists, but because it undermines the legitimacy of labeling something 'terrorism'.
Antifa is largely composed of skinny suburban white dudes that are looking to break windows, torch cars, spray-paint stuff, and (sometimes) punch people. Meanwhile, legitimate terrorist organizations burn people, cut off people's heads, and bomb buildings. No antifascist will ever do that because they're not actually militants. They're serial-vandals in black-bloc cosplay. They're all cowards who show up to protests for maybe two hours at maximum, satisfy their lust for breaking stuff, and then go home and watch Netflix. Nothing even remotely the same as what happens daily in Syria.
