No worries here. It’s the same as with Palin’s statement to that effect. It’s about signaling the RINO-GOP establishment that we aren’t their stooges. Look at NY23.
The GOP better be listening. If the McCain's, Graham's, Snowe's and the like don't like it, tough.
They are out anyway. Dead meat. They have absolutely zero opportunity for reconciliation.
As for the other Republicans, they can get with the program and perhaps survive.