Is it perfect? No, probably not. But repealing it would likely increase the budget deficit according to the CBO and put a large number of folks into a much worse situation than they are in now.
The battle over cost was left for another day.
But beyond that... has average life expectancy measurably increased because of this "extra" insurance coverage?
Has the number of medical-related bankruptcies measurably decreased as a result of the expanded coverage?
I can't find solid data but everything I've seen suggests that those haven't really changed at all.
Given that, in the grand scheme of things, has anything actually improved for us, collectively? Healthcare is much more expensive now, but maybe that would have happened regardless.
Where on the chart did Obamacare get passed / implemented?
It was always about access, not cost. That pissed me off back then that single payer was not even on the table in negotiations. It was watered down to get it through, but I am still thankful that something got passed... I would still have a messed up rotator cuff from when I was 15 otherwise.
Artificially limiting the ability of new participants to enter the market on the supply side, for example, creates an artificially-oligopolistic environment without the natural competitive pressures that force pricing down.
Even worse, this in turn results in an environment that attracts people and organizations who want to exploit these government-created inefficiencies for personal profit, rather than attracting people and organizations who want to provide higher-quality and lower-cost service than their competitors.
The end result of this government intervention is artificially-high costs for abysmal service.
The situation only gets worse when government tries to intervene with even more "solutions" for the problems that government itself created in the first place.