In light of "Antifa" being designated a "terrorist organization," a (very mildly) good thing that anyone can do is say publicly: "I am antifa."
Antifa is *already* a decentralized non-organization, but throwing up enough chaff that dragnet "surveillance" of online spaces becomes useless is a good thing. I promise you really don't want to live in the world in which whoever the president considers "antifa" has been hunted down and locked up, but thankfully, the president doesn't have the resources to make that happen without lots of local police cooperation. Local police are generally champing at the bit to bash leftists under the flimsiest of pretexts and already have programs doing undercover surveillance of leftist spaces, but they also don't want to look like fools or be mocked by their communities, so a strong public response indicating sympathy for and/or real solidarity with "antifa" could influence things right now.
#Antifa