The problem with an import VAT is that our trade partners will likely interpret it as a tariff in disguise, not helping us.
I'd rather fund healthcare this way - no withholding of tax money by individulas, or quarterly tax payments to the govt by companies, till health insurance costs are paid first. Allow businesses to created tiered plans, HSA's, buy across state lines, etc.
There is no need for govt to take tax money in, in any way, to solve the healthcare issue beyond people who are uninsurable or have inadequate income. The Dems want govt solutions because they aren't serious about the problem, they just want something to control and leverage us.