I can tell you right now, that I will support 3rd Party every way I can should the House cave. The GOP has been on life support with me for some time now.
Do I think a 3rd Party stands a chance in the next election? Hell no. The next 10 elections? Nope. I think it's a safe bet that I'll never see "conservative" politics on a national level again in my lifetime (I'm 45). But maybe my grandchildren or further on down will be the ones to reclaim this nation. I don't know. But dammit, it has to start somewhere! May as well be now, with me.
No. I suspect there is no turning back short of massive armed insurrection and the likelihood if that occurs is a tyranny populated by a different group of tyrants.