When did white Christian Evangelicals become one with White Nationalists/White Racists/ALT-RIGHT whites? Satan's handiwork?

As an Evangelical Christian who happens to be white, I don't believe that is the case. I don't know anyone who is any of those terms you describe except  white, Evangelical Christian. 

They haven't. What makes you think they are???

The only works of Satan manifesting here are the delusions of the far left.

Well now, I don't pretend to speak for all of Christendom. But as a follower of the teachings of Jesus Christ, I found that the question was resolved in the Gospel of Mathew when Christ said that loving the Heavenly Father with all of one's heart, mind and soul came first. After that, love your neighbor as yourself. It was presented as an additional commandment. Now, I'd be just a little suspect of anyone who claimed Christian teachings, yet conveniently omitted these words of Jesus. Just as I'd be a little suspicious of someone categorizing people, tarring them with broad strokes of the brush and labeling it bigotry. But then, racism is the last refuge for the left when all else fails.

There is still a long way to go before that can be said to be the case.

have no idea, didnt know they did that

An ill-informed person parroting false information yet again. 

I think you just insulted several members of my family. But that's nothing new.