WTF USA?

Well they’re coming from exactly the same place as Trump: white lower-middle class people’s belly. These are the guys who were accustomed to being a majority and being represented by a specific party. The novelty in Trump-like guys is that they are able to drain votes from two formerly opposing fields.
Middle-class conservatives always voted conservative and are increasingly shifting to the right out of fear of new minorities (arabs, latinos) gaining (perceived) economic and political power.
On the other hand, the working class traditionally voted left within a capitalist-worker dialectic. As long as the capitalist was the workers’ opponent the scheme held. Now the traditional relationship is no longer holding as the workers see a bigger menace in lower wage countries “stealing factories” or immigrant workers “stealing jobs”. This is the masterpiece of the capitalist class: driving the workers’ attention away from the real opponent to focus on a rearguard fight against someone poorer.
This plan was carefully carried out in the past 20-30 years by progressively demolishing public school, with the complicity of left wing leaders being apparently more interested in arguing with each other than in people’s troubles.
The problem is that now the plan seems to have backfired: the usual dominant classes are being overtaken (on the right wing) by guys who are more able than them in controlling the masses. Nothing too new: the awkward US republican nomination campaign was not much different from Germany’s 1933 elections, when conservatives thought they could handle Hitler’s “antics” and control him once he brought them to power.
I see no easy way of reversing this trend.

She could make a split record with RBF – that would increase the number of original members in either of the two bands by 1.

Yes, just a poor joke on how RBF have just one surviving original member as well.