SheepDog4Life
Natural Gray Man
The point was that the circumstances they were able to use for this process failed at the 51 threshold. If they change the rules to allow only 51 votes for normal legislation where does that really get them or even the US in the end? What happens if and when the Democrats gain control again? Sorry but at some point to make this work there's going to have to be some compromise.
Under strict Budget Reconciliation rules, only changes that increase/decrease taxes and spending are allowed. So, no true "repeal", and definitely no "replace" as no rule changes are allowed. For example, under these "rules" the "mandate" would remain, only the penalty would be changed to $0.
Which is presumably why McCain voted against, as he had voted several times and ran upon repeal.