It is best not to let dislike of GOP RINOs overwhelm realism and sound strategy.
***We’ve had 40 years of unipary GOPeRINOs running things. You call that realism and sound strategy, then you’re part of the problem. You’re a Whig.
The best approach to keeping the GOP on track is to have a good Republican successor to Trump and an aroused base of activists.
***And those aroused base of activists are ready to jettison GOPeRINOs. Try not to stand in the way.
As a matter of practical politics, I favor exemplary punishments of unreliable RINOs but not purges or mass expulsions. More than once over decades in conservative politics, I have seen RINOs fall into line once it was made clear that they were no longer in charge. If this seems less than fully satisfying, one might consider that the goal is not purity but to attain and keep a majority in order to run the country.