They did, they have, and they will. That is, in a nutshell, their psychic wound. The nation has changed, is changing, and will continue to change away from the world they knew when people of color, women, gays, and others outside their enforced mainstream knew their place and stayed there. Having come this far into a more accepting, slightly more equal and inclusive culture, they want to turn back time, and are quite willing to do so with force.
In the past, all they could do is complain, commit the occasional hate crime and stockpile weapons. Now they have the full weight of the presidency and much of our federal and state legal infrastructure behind them. They have the power now to enforce their time-machine mentality.
And they are not afraid to use it.