Buying your insurance through a government-run exchange only from vendors the government says you can buy them from, and paying for it with a government subsidy.
Naaaaaaaah...that's not socialism!
It's really not.
Socialists advocate redistributing the means of production to the working class. Liberals are bureaucratizing the means of production through the government.
Heck, it's bureaucratization like universal health care which leads to people living irresponsible lifestyles from excessive indulgence. That leads to commodity fetishism and social alienation.
Socialists don't support commodity fetishism or social alienation.
There's more in common between socialists and conservatives than what first meets the eye. Conservatives don't want elites planning the economy either through a nanny state.