Honestly, I would not criticize Obamacare if it worked. But it doesn't work. America was sold a bill of goods by Nancy Pelosi and her Nancyboy at MIT.
The previously uninsured quickly became heavy users under the AFA. This is true of those with pre-existing conditions and the otherwise previously uninsured. Both groups made a frontal assault on the system as soon as they got in and it hasn't stopped, kinda like We Got Some Big Time Payback for the mofos.
I support medical care for all Americans. I support a guaranteed job for all Americans. I support free tuition at state/public colleges for all Americans. All three concepts have been rejected as "too liberal". Please note my emphasis upon "AMERICANS".