Tell your GOP congresspeople to test this by putting forward a bill that will shore up the areas the ACA needs improvement in, since repeal clearly is NOT going to happen. Then we can really see if they will oppose everything as you say. They didn't oppose all of Trump's appointments so already we know this is false (like the new head of FEMA, who got wide support from Dems). But they won't do that of course. Because when it comes to party first, country second, no one knows how to do that better than the GOP.