Once again, there is zero accountability for the Bushes. I voted for both of them, but when Bush 41's performance as President lost him millions of his 1988 votes, it's Pollyannish folly to ignore the consequences of his "vision thing," or lack thereof.
You aren't going to build a successful coalition by saying that "no matter how badly Republican politicians screw up, no matter how much of the Democrat agenda they advance, you have no choice but to vote for them."
It's a cold, hard political fact that if you say "the RINO way or the highway," you are going to lose some votes. How many? That will vary. In some races you'll get away with it, and in others, you won't.
I think, though, that it will cost the GOP more than it helps, and the urgency of efforts by RINO apologists to bluster at the possibility of defections indicates to me that they secretly understand the danger they court.
You all protest too much.