You can't just change the rules because you don't like him... you have to beat him. There's still time but Republicans have to stop being wimps with this "I support the nominee of the party" crap. Come out in unison against Trump and bully him out of the race.
I don't see how your first two sentences work together. Either the voting in the primaries should determine the nominee or it shouldn't. If it should, then it is already too late, and there isn't still time. Trump has already won. If it shouldn't, then they'll have a vote at the convention, to see if they want to nominate Trump or not. If the majority there don't want him, and they vote against him, then they're not being wimps, saying that they "support the nominee". They're actually going way out on a limb by rejecting him. So which is it?
Your whole post makes no sense. If the GOP wants to defeat Trump and eradicate him from the party then they should all be doing what Mitt Romney is doing. Treat him like a bacterial infection they desperately need to get rid of rather than accepting their ugliness.
