I don't argue against that, but frankly, I don't feel like I'm controlled more than I would be down south - because of course the truth is, I'm so dirt-poor that I wouldn't be able to afford treatment for anything more major than a skin infection anyway.
Fortunately, so far I have to leave the benefit of the doubt to both systems; I'm yet to fall ill enough to test the public one. When I do, I'll tell you. Unfortunately, I'm afraid that if it turned out I had a serious cancer today, I'm confident I'd be equally dead within a few months in both arrangements (In Canada, because you have to wait for even an MRI for several months at least; in the US, because I wouldn't be able to pay for it)
Conversely, I'd heard good things about other more or less public health systems. Not so much Canada's.