You should also know that the Proud Boys initially had nothing to do with antifa; if anything, it's the other way around with antifa stepping in to counter Proud boys, PP and other assorted far right gangs that took off post Trump's election.
You should know that ANTIFA pre-dates the Proud Boys by about nine years, and the far left gang you seem to support have been carrying on violent political protests against anything perceived as right of center for almost that long. Their activities escalated after Trump was elected, and they and their ilk have often been blamed for much of the violence during the BLM protests, as well.
And some Trump people ARE racist, but most are just scared and angry about their economic future and a world they see as changing to exclude them.