Some bozos: "You know not everyone on gab is a nazi, right? Have you seen their feed?"
Guess what? If they're choosing gab as their home, they're supporting nazis. If you support nazis, you enable the harm they do.
Guess what? They have the option of going somewhere--anywhere--that isn't gab. It's not our fault if they choose to live among the nazis, and I'm sure as hell not going to let hundreds of nazis into my mentions just for these people who "have their own reasons" for being there.