I can't figure out Ryan and the Republican's strategy doing this, but it was never about passing a better health care legislation. All that mattered was that they could say Obamacare was repealed. Sounds like a losing outcome no matter if their bill got through or not, so where were they exactly going with this?
Republicans are in a tricky spot. They've been shouting from the roof tops for the past seven years that they want to repeal Obamacare. They look stupid if they control government and don't repeal it after promising it for years.
If they want to replace it with something that kicks a lot of people off of healthcare, too many moderate republicans won't support it because they'll be slaughtered in 2018.
If they want to replace it with something that doesn't kick a lot of people off of health care, the rest of republicans won't support it because they don't want the whole thing to exist
That's what they call a conundrum.