The underfunded expansion enabled the vast majority of Republican controlled states to reject the expansion.
The reasons for the refusal of states like North Carolina to expand medicaid are well known. They have little to do with the states finding the federal money extremely unhelpful and too small. The overwhelming majority (32 of 50) of states found the money extremely helpful.
Further, the original plan included both carrot and stick to encourage states to adopt the expansion. The Supreme Court held the stick part of the bargain to be unconstitutional and left states free to reject the expansion. Many states like North Carolina, elected, to the detriment of their populations and their in state hospitals, to reject the expansion because well Obama. The incoming NC governor has proposed taking the money, but the Republican controlled legislature said no because, Obama.
Kentucky actually accepted the money only to have the incoming governor close down the state exchanges because, well yes, Obama.
You believe that even more federal funding would make a difference? Well given the fact that Republican leadership opposes the ACA as socialism and wealth transfer, the idea that some more government money would help is unsupportable. You are welcome to try.
Enough did expand Medicaid so that there will be enough suffering in GOP states - if cuts are significant enough - to cause Republicans to challenge and oppose Trump's recent House passed bill.
This prediction turned out to be true. As of this date, every Republican plan has failed in the senate. Part of that is because of complaints from state governors.
Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)
History will have to record that the greatest tragedy of this period of social transition was not the strident clamor of the bad people, but the appalling silence of the good people. Martin Luther King
I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend. Thomas Jefferson
Worrying about the "browning of America" is not racism. -- Faith
Some of us are worried about just how much damage he will do in his last couple of weeks as president, to make it easier for the NY Times and Washington post to try to destroy Trump's presidency. -- marc9000