One problem is you ASSUME (and we all know what that means) that the real principled conservatives don’t work for the Party or have not previously worked for the Party.
That is BS.
The bigger problem is that the GOP has no answer for what their Primary (rigged to give us the product we receive) System gives us...wishy washy liberal (moderate my ass) Establishment anti conservatives.
McCain (who is blaming the GOP for the shutdown) has always relished stabbing conservatives, not in the back, but in your face on the Senate floor...Romney (who took away the primary issue of ObamaCare away since he agreed in principled) ...and now they will foist and rig it for JeB Bush.
The GOPe always blames conservatives for their own failures...well, we couldnt have gotten 2 more liberal establishment milquetoasts than that duo...how did that work out for the GOP?
More importantly, why should conservatives stay if the Primaries are not changed? We don’t need to stick around and see Jeb coronated. The GOP offers us nothing at this time but the same slavery that the Dems offer minorities and illegals.
A third party is a bogus idea from start to finish except for those who dream of seeming like a bigger fish when they're in in a much smaller pond.