Ironically, that's just an inverse of what seems to be the standard policy of Antifa that makes them such a pack of exceptional assholes. People are often too quick to call out someone on their side and throw them under the bus just for saying something dumb once, someone on the other side making an unproven accusation against them, or petty personal bullshit, but making it a policy to never deal with your bad actors means they're just going to rise to the top and become the face of your movement, giving your enemies factories of ammo while turning your movement to shit. And unlike Antifa, the alt-right doesn't have the luxury of tons of sympathizers in the press trying to cover up the shitty things the more exceptional members say and do.
But this is a group that thought "Nazism but it's just ironic, even though we actually are racist and antisemitic" was a mantle they could actually get political victories while wearing. We're talking Sargon levels of political competence at best.