I do not think they are in the least self-destructing - they are winning and running off conservatives.
The country is getting more and more voters that want as many entitlements as they can get. They won’t say so, but this is the give-me generation.
And, when that happens, they do not want conservatives stopping the treasury from being their checkbook.
They also want to revel in their own ignorance and look to the government to take care of them so they have no responsibility to deny themselves even one luxury as they live their stupid lives.
And the ones teaching the GOP a lesson are playing into the plans of the moderates and giving our only party with any ability to counter the democrats to those who are democrat-lite.
That is what happens when you go up against a team intent on winning and a team with no ability to work as a team. Too many yellow-livered turncoats running.
I guess I’m thinking longer term. When there is only one party there will be room for another. If this is working, then it would indicate we need to pull strong and hard to the right. No moderation in defense of liberty.