The system will crush anyone who tries to reform it.
My humble suggestion is to establish a litmus test for those we vote for. In exchange for my vote I want to hear a specific commitment from the candidate outlining what they will do to shrink the government. If we keep electing people who keep expanding the size, scope and power of the federal government there is no hope of ever saving the republic.
Bear in mind also that big government is the cudgel that the Left relies on to advance its agenda. We have to take that weapon away from them.
While this won’t solve all our problems it will be a step toward getting the country back to the original vision of the Founders (federalism/limited government), which sounds like something you could get on board with. It would also let the GOP know that our votes are contingent on them producing RESULTS that will help restore some of this country’s founding principles.