I think that is a doomed worldview. The idea of liberty is that you can trust free and informed individuals. I think this is a conservative worldview.
And the party doesn't pick people that we would.
The party doesn't prevent any qualified candidate from running and doesn't prevent any conservative from voting for them.
The "party" is not the same one day to the other. It's not this unchanging monolithic abstract. It is comprised of individuals. Those in positions of power can be changed and have been.
Any thing you can do with a third party you can do easier and quicker within the GOP. Anything you can't do within the GOP, you can't do with a third party.
Bye.