I don’t dismiss your points but I think Trump and Cruz are not stupid enough to engage in a two-front war.
Of course if the GOPe won’t eventually compromise at all there’s no choice.
I don’t think Trump should declare war on the GOPe. I’m not seeking to infer that. I’m just saying he doesn’t need to pander to them, or capitulate to them.
Give them a great big smile as you walk past them on your way down the road to fixing things.
If they try to play the Party Card, simply tell them they had their chance for decades. “Love you guys, but no thanks.”