The problem with Canadian health care is not that it is too socialized. It is that it is too capitalist. It places too high a priority on delivering profit to doctors and hospitals. Indirectly, this works out pretty well for those consumers who have pronounced medical-intervention requirements, and thus can serve as profit-delivery vehicles to doctors and hospitals.
In the US, by comparison, only rich people can serve as profit-delivery vehicles to doctors and hospitals, so the advantage of the US’s extreme, conservative-liberal medical market regime is that rich consumers deliver the fattest profits to the doctors, so that some doctors in the US, the ones with the richest medical consumers, can get FAT rich. On the other hand, the Canadian system controls pharmaceutical rents. US policy favors pharmaceutical sales reps’ power over doctors. And HMOs take rents and provide another layer of market domination over US doctors.
However, this is not to say that Canada’s is a fully-developed health care system for humans. It’s medicine, triaged for capitalist requirements. Because Canada is liberal.
If you are not regularly sick or requiring physical relief and readjustment, then you are excluded from the Canadian health care system. You can’t deliver steady money to doctors and hospitals, then you are likely to not be able to access a doctor. You have to rely on continuing exercise, good food, luck, and, if you’re an adult with a little income or wealth, affordable physiotherapy. This is not too much different from Americans, though the adult access to effective, affordable physiotherapy is superior in Canada, and is an okay skeletal (ha! see what I did there?) health care system for usually-healthy adults.
However, normally-healthy Canadians often do not have access to doctors for health monitoring (eg. through childhood development or changes through aging) and consultation, nor for treatment of unusual, fleeting, or minor diseases and injuries, however much these may impact the body’s structural integrity and development. Thus, without exposure in their practice, Canadian doctors are not as adept at identifying health issues that crop up amongst a generally-healthy population. Canadian doctors tend to become experts in cancer, heart care, and broken bones. Neither liberal subject, Canadian or American, has decommodified access to dental care. This is to say that bodily structural integrity and development is never a right nor a priority in a liberal-conservative regime.
But if your luck runs out in a way that is a fast, explosive emergency (broken bones, cancer, heart events), then unlike most Americans, Canadian citizenship includes social protection in those emergencies, as access to medical treatment. And because the sick and differently-abled have access to medical intervention regardless of their own private wealth, Canada has better control over infectious diseases.