One way to look at it is that the Dems have a majority in the Senate. Even if a solid conservative replaced McCain, odds are the uniparty could find 2 or 3 more RINOs besides Collins and Murkowski. And the media will blame Trump because he didn't pass any healthcare bills "even with GOP majorities in both houses."
Dems won on health care.
They with Obama-care convinced a significant number of Americans that health care is a right delivered by the Federal government.
Trump's election didnt change that, in fact the opposite.
As time goes on with him POTUS he slowly inherits the blame from Obama for Obama-care imploding.
Repeal wasnt going to pass.