If Canada is so awful and socialist, why aren't the Canadians all flocking to America?

I mean, why don't we have a huge illegal immigration problem coming from "socialist" Canada? I am sure that someone here has met a Canadian immigrant and will use that as proof of the m exodus. Also, why not supply us with actual statistics on how many Canadians come to the U.S. each year for medical procedures? Could it be that Canada is a developed nation with a very high standard of living and is also a capitalist, free-market nation with over a trillion dollar GDP? Or is it that Canada is a "neutral country" ----there are actually people who believe this despite Canada's exemplary military record throughout the year -----and can spend more money than us? Why no m exodus? I mean, we're the only country with freedom and prosperity, right?