Is there a reason for Medicaid expansion beyond the fact that the ACA is not the solution to the problem of the uninsured we were told it would be?
I don't believe so.
If the ACA were functional the same people who are now pushing for Medicaid expansion would be pushing for Medicaid reduction. That they are not is an indication that the ACA is failing not only America as a whole, but Americans individually.
Alternatively we can argue with ACA dead-enders who claim the would ACA work if only we extend state care to all those individuals the ACA forced out of self-funded health insurance. Mind you these are the same people who also call for expanded unemployment to cover those forced out of work due to the ACA and these are the same people who wish to expand programs to tend to the growing class of newly part-time workers who only exist due to the ACA.
But hey, these are Democrats and they care about you; it's their fantasy. Perhaps we should let them tend the injuries they cause... let them offer to those they maim as they swing their ball-peen hammer of "health-care" upon America.