While I understand and agree with your position on Bitch McConnell and Milquetoast McCarthy, starting a third party will simply guarantee Democrat wins into the future.
IMO, the solution is a complete take-over of the Republican party and getting rid of the current "leadership."
I've advocated for that for many years, it seems to be a futile effort and at the same time, the signs are there it may actually happen. IMO getting rid of the current "McLeadership" should be the focus. This seems to be our best chance.