Just attempting to replace RINOs has also failed. The RNC fights people they can't control. It needs to be a fight from both sides - primary them where possible, and if the candidate is a uniparty stooge, run a third party candidate hard and vote for them even if it means the D's win. Our way or the highway.

Of course, this will only be effective where they don't control the electoral system, but that isn't everywhere and this organizes us for peaceful resistance.