Interest payments on the debt will be $1.2 Trillion this year.

There are about 164,000 individual taxpayers in the US.

So each taxpayer is paying around $7,300 each just for interest on the debt.

Which is more than Canadians pay in taxes for universal healthcare.

Assuming you meant 164 million taxpayers...

Your number is too low still. Half of those filers are not contributors, they receive refunds. The figure is more like ~65 million taking on this tax burden, so likely closer to 15k (rounding math)