To some extent, this is backlash from decades of Democrats using racism to beat Americans over the head into submission. The backlash started with Labor, specifically blue-collar white males, leaving the Democratic Party and voting against Hillary in 2016. They'd had enough and Trump was the alternative. Now the MAGA AKA Make America White Again movement has expanded to hate anything non-white, non-straight and non-male.
You hit the nail on the head about reducing all white women to second-class citizens. MAGAts are trying to do the impossible, turn back time 60 to 100 years.
The first six months of Trump's administration will prove what they are trying to do. IMO, this will backfire on them since, as always, results count.