They had seven years to come up with a coherent ~conservative health care solution~. SEVEN ING YEARS OF CONSTANTLY RUNNING ON OPPOSING THE ACA. Is this turkey all they're capable of?! Is it all they want to be capable of?! Why the hell didn't they prepare a halfway acceptable bill two, or five, or seven years ago that they could pass when they got a Republican trifecta?! Why didn't they spend any of that seven years coming up with something that wouldn't cause people to die in a heap if passed?
It's not that complicated. They didn't come up with anything better than this "turkey" because there is no "good" bill that can pass on Republican votes alone. The Republicans disagree among themselves about what kind of role the government should have in the health insurance industry, and the policy preferences of many of them are too politically unpalatable to put forward. Yet they need to almost unanimously agree on whatever passes, because their majorities are narrow.