If you thought the exodus of democrats out of Washington was huge - the Republicans would pay a far higher price than they did should they not address the problems that are coming out of Obamacare or try and simply take away the entitlements.
Sounds like you want to put party over country. If republicans really believe repealing the ACA is good for the country, why don't they do it? 8 years ago, Democrats did what they thought was best for the country, and passed a national healthcare bill at great political expense. Why did republicans counter with... a national healthcare bill, since national healthcare is so bad for America?