The only reason to stay in the GOP is to vote against the GOPe in closed primaries.
I guess you could call me a RRINO Registered Republican in Name Only. I remain registered as one of these creatures to attempt to influence primary elections and to vote in local elections as the local Republicans in my area still act conservative for the most part. I have come to detest Republicans as much as Democrats because of the evolution of the unitparty that is running the country into the ground.
If asked I am a conservative and independent as in the general election I have long since given up on the Republicans. If there is a conservative Republican in the general election they get my vote, if they are the typical riff-raff liberal fool the Republicans trot out they have to win without my vote or support.
IMHO the Republican party must die quickly and be replaced by a 2nd opposition party to the liberal junta running the country now.