A Question Conservatives Can't Answer (Socialized Medicine)

If universal healthcare is so terrible in the first world, industrialized nations that institute them, then why aren't there ground swell, grassroots movements to vote these systems out?

The only movements that are trying to get rid of such systems are the made up of the same people who are trying to stop it from coming to the United States, which happen to be made up of rich, white, corporate executives.
Why is that, conservatives?