You cannot blatantly twat the will of your voters in that fashion and expect to stay a viable political party.
Self absorbed and willingly narcissistic the GOPe leadership is, what it is not is suicidal. They will do the same thing they did in 1979. Grit their teeth and expect to outlast the insurgency. After all, it has always worked for them in the past.
This will be the last election in America ... IF we have an election THIS time.