That's a relief, if it's true. Every time I hear this horseshit that the Republicans are responsible for "replacing" ACA (presumably with some other bullshit, big-government "solution") it makes me cringe. If Republicans don't have the will to repeal ACA outright, the last thing I want them doing is replacing it.
The Republicans aren't going to replace O'care IMHO.
Obama's big mistake with the ACA was insisting on a single party, ultra partisan healthcare plan. A lot like Hitler's plan in the 1930's, which passed solely on National Socialist Party votes in the Reichstag.
The result was that the GOP and Independents had no actual ownership of the program, no reason to try and make it a success. All they really want to do is to get rid of it.
When Johnson instituted Medicare- he worked to get bipartisan support, and that gave the GOP a stake in trying to make sure it worked.
If President Trump get Tremendous Health Care to replace the ACA failure, it will be done on a bipartisan basis or not at all