We can hope to primary out some of the weak links, but in destroying the current Republican Party, you may just ensure that the only ruling party is the Democrats forever. I don't see any good results here. A strong, conservative Republican POTUS might provide leadership for the gutless, spineless, clueless congressional Republicans. But, I am afraid the current leaders in both House and Senate are worthless hacks with no ability other than cave and give the Donkeys everything they want. They will tell you they're doing this because POTUS is black and it is an election years so they don't want to antagonize the moderates and fence sitters by appearing confrontational. Grrrrrr.
A Republican party that grumbles while complying is little different than a Democrat party that complies willingly. The results are the same. At least by stamping the worthless GOP out of existence we could have the satisfaction that we fired some useless SOBs who did not deserve their cushy jobs. It's not much, but better than nothing. Sometimes, petty revenge is all that's left. It's like knowing you are mortally wounded but you try to take down as many of the traitorous enemy as you can.