What's that got to do with it?
If you think you need to point a gun at someone to make them do something you think is sensible on the face of it, then somebody is missing something.
We didn't have mandatory insurance in California until the 1970s. Oddly, we all survived. I suspect the insurance was cheaper then, too.
It would be amusing for a reporter to ask Hillary if she thought someone should be able to provide proof of citizenship to get a job.