But most of them can act like they are against it and vote "no", while it will still pass with mostly Democrat votes.
That's a win-win for the RINOS.
You can only do so much. I feel this is what happened with the failure of the last vote on Obamacare. Three Rinos agreed to vote no, giving cover to the rest of the rinos, allowing them to vote yes.
But short of walking in and shooting the ones you think are Rinos, what is your proposal?