It needs to not happen.
The chaos it will unleash in the lives of ordinary Americans isn't worth it. The same, btw, may be said about the consequences of simply not funding Obamacare.
If Obamacare is going to be repealed (and hopefully replaced by something that works better), you do that when you have the votes. These ridiculous, silly games aimed at scoring ideological points- and having absolutely no chance of actually changing a thing where Obamacare is concerned- are irresponsible, childish, and downright heartless.
I suspect the symbol of the Republican Party may be changing soon to the Tin Man from the Wizard of Oz (the Tea Party being the Scarecrow). The Congressional Right needs to decide whether the welfare of the American people or winning an argument with Barack Obama- and winning it right now- is more important..
The trouble is that I suspect that many of them have already decided that- and prefer to win that argument.