I agree: the thing that I find silly about this proposal is that they aren't garnishing wages to pay the med bills. Forcing people to pay health insurance seems downright un-American, too me. But it would be perfectly appropriate to collect on the actual med charges. Do that, and suddenly people will find a way to buy some kind of insurance - the ones who really can afford it, anyway.
Can you drive a car in your state without insurance? Can you mortgage a house without insurance? Should you have access to medical care without insurance or some proof that you are prepared to pay for it? What is wrong with personal responsibility?