The establishment GOP is uniparty controlled opposition which means if the GOP splits votes with 3rd party then the uniparty wins even though the "GOP" loses. We have to primary the RINOs and if that fails we abstain from the general election and let the uniparty Democrat unseat the uniparty Republican incumbent. Also sends a hell of a message to anyone considering selling out when multiple states have more primary Republican votes than does the general election.

Edit: of course if Trump forms patriot party all bets on this are off.