The political science is pretty much settled on RINOs; Republican lock steppers simply can’t stop electing them.
most of us aint locksteppers, Mr Trump isn’t.
This kind of defeatism isn't helpful. RINOs have been an endangered species for a long time now. Look at the GOP today vs the 70s when it was run by northeastern Rockefeller Republicans. Progress may be slower than you or I like, but the party has never been more to the right than it is today.
Adam Kinzinger and Liz Cheney have zero chance of ever holding office under the Republican brand again... so what are you talking about Preston? Romney? Beating a dead horse there ...