I disagree. WE own the party. WE should kick them OUT!
We'll see. IF they refuse to give the nomination to Trump or to support him if he wins it outright and throw the election to Hillary then it will be clear who really owns the party. voters are just tools to them, useful idiots they need every two or four or six years so they pat them on the head, tell them some clever lies, and go back to the waiting arms of their democrat lovers (speaking metaphorically) until they're forced to repeat the cycle.
If they voters actually get uppity and start expecting to count, like the Tea Party, they get mocked, fought, undermined, audited with the GOP looking the other way. If they coalesce around a single candidate that the GOPe doesn't like, their contempt for us, the voters, gets even more overt.
The GOP is dead as a real opposition party and has been since Reagan. It's a vestigial organ on the body politic now and it ougt to be excised so something new might rise.