One politician flipped an entire party’s platform? What about the 20 democrat senators who voted against the act and stuck with the party?

A campaign of FUD regarding states rights (the basis of democrats own secessionist arguments) and conservative policies and blindness to continuing racist liberal policies is more likely (including the current president).

> One politician flipped an entire party’s platform?

I think you need to learn the difference between saying something is a simple piece of evidence of an effect and saying it is the cause of the effect.