"Socialism" and health insurance

I'm getting increasingly annoyed at hearing people who already receive taxpayer-funded health insurance or care call it "socialism" when it's proposed that everyone else receive the same thing. Basically, they want working Americans to pay, at least in part, for their health care but object to having to reciprocate. I believe something like 70 million Americans receive either Medicare, Medicaid or VA care. If you add that number to everyone who works in the public sector (federal, state and local bureaucrats, prison guards, soldiers, teachers, etc), the number of people who receive taxpayer-funded health insurance or care has to be close to, if not actually, a majority of Americans.