"It's"deplorables" all over again, but even worse. Remember, Hillary Clinton only smeared half of Trump supporters are irredeemably bigoted. O'Rourke appears to slime all Trump voters here, stating that it's "really hard" to see a 2020 Trump vote as anything other than a racist act."
Such indoctrination makes it really hard for them to appeal to moderate Dems, independents, and swing voters they need to win the election.