I wish there were a more "pro" way to describe people who hate Nazis and fascists.

"Humans in good standing"?

"Non-demons"?

Like being anti-fascist is a bad thing!

Alt-Right is a euphemism to make racism and fascism sound like a slight variation on conservatism. I refuse to use the term any more, and I will correct those who do so.

Taking the deep, cold plunge and presuming you are in fact, sincere, you could simply ask the network of activists and clergy members called Solidarity Cville who organized the counter-protest.

"That gives the right ammo for saying the left is aggressive an just as bad doesn't it?"
Nope. Only side killed someone.

It is a bogus term