The government can't compel people to buy something they don't have the money for. The only way to get universal coverage if for the government to pay for the insurance of people who can't afford it.
The only way they can do that is to take money from the people who can and then they'll be left that much less able to buy good insurance for themselves. How is that a "win" for them?
Ollie North had the best idea years ago, allow physicians to deduct the cost of free care from their taxes. Set a limit of 15 %, something like that.