I think McKaskill is the deranged one. The Norma Desmond of politics.
These look like talking points she was told about in a desperate context.
Trump is gaining minority votes because minorities can see the Swamp just like anyone else. So she talks about that because their polling analysis says those are double whammy voters. A voter who switches subtracts from one and adds to the other. It’s not a voter who never voted before and merely adds. Trump is getting the mathematical double effect.
Much of the rest is delusion. They desperately want to believe LGBT stuff moves votes. It doesn’t. Those are supporters who face parents who might have been generic “suburban white women” who now see their daughters denied a chance to compete for athletic scholarships. They will lose those votes.
So don’t presume this woman is a wacko. Her text is too careful for that.