Here is Scott Adams's blog post about the politics of health care. Adams is correct that the number of people who have health-care coverage is the important consideration. If even one person who now has coverage (under ObamaCare) loses that coverage (under TrumpCare), Republicans (including President Trump) will pay a heavy political price, one that may include electoral defeat in 2018 and beyond. CNN and other networks will find such people and put them on air nightly. They will cry and tell their sad stories. Viewers will conclude that Republicans took their health-care coverage away in order to increase profits for hospitals, pharmaceutical companies, and doctors. It will be an ugly spectacle.
You may not like it that this is where we are, but it's where we are. ObamaCare has made the existing situation the default position. Anyone who wishes to alter it has the burden of proving that nobody is worse off. In economic terms, any change must be Pareto superior, meaning that at least one person is better of and no person is worse off.