The Remarkable Spectacle of the Repeal-and-Replace the Affordable Care Act Crowd...: Look at the amicus brief of a far more reputable gaggle of economists in the Florida individual mandate case:
It really is no contest on the quality of argumentation.
BTW, the case for ACA as near to the best feasible reform was abundantly made at the time. Standing laws don't need continuous fresh defences. It's up to the repeal-and-a-pony crowd to make their case, and there isn't one.