Well, the repeal effort is happening predictably.
I wish the Republican legislative branch would just come out and admit "We don't believe the government should be involved with health care (unless you are a woman, of course)." Then the lack of a viable alternative after 7 years of pleas from Congress makes sense, as they want the tax cuts to the 0.1% to go through as quickly as possible (which they can do through reconciliation). Whether millions lose their insurance is besides the point.
I don't know why, in this new era of the Republican "mandate", they aren't clear with their intentions, as it would absolve everyone from playing these games of smoke and mirrors.
I would say that the masses, even Trump supporters, actually appreciate health care and being taken care of, but they're so deeply indoctrinated by American culture that they think they have a shot at the "dream", which won't happen. But since that's their belief, you can't really undo that and still have the wide population be semi-servile workers creating wealth for the top (trickle-up economics, or, as I like to call it, wealth redistribution).
In other words, it's just a need to keep the status quo. The sadist in me wants Trump supporters to lose their health care and suffer the consequences, because they were dumb enough to vote for that nonsense (not all, there are exceptions), and the humanist in me wants everyone to be well (since we're all special snowflakes).