Dont bother. While I understand the merit of your argument, others will never even consider it.
They have health insurance, so do most people in their family. Until that fact changes (and it will), your words fall on deaf ears.
My point is, Universal Health Care is a hot-button issue (as it was meant to be). Its the same as abortion, illegal immigration/amnesty and gay marriage.
A distraction tactic for the politically starved, providing the much-needed reasons for hate and contempt needed by others to despise those unlike themselves.
If you ever encounter the few here who can have an argument free of their own personal motivations, feelings, and self interests youre lucky.