You don't owe any of it, if you don't want.
In the first place, the national debt is based on your "strawman" trust created for you using the birth certificate, at your birth. It is not you. But if government can convince you that it is you, well,
they got you.
Nobody can apply the national debt to you personally.
They base the Debt on the measurement of income taxes paid. Any time you want out of income taxes, file your W-4 or W-8,
exempt, non-assumpsit, n-a, n-a, n-a, n-a, n-a... in all the boxes for everything on the forms. Sign it n-a John Doe (your signature).
Taxes are voluntary. The way you get into the system is by signing the quasi-contracts, W-4 and W-8. "Non-assumpsit" means "no contract." "Non-assumpsit" is what the "n-a" means that you always thought meant "non-applicable." Redo the W-4 and W-8 non-assumpsit exempt.
Watch all the Karl Lentz IRS videos at
https://www.youtube.com/user/765736/videos?view=0&live_view=500&flow=grid&sort=da for the answers. In addition, DuckDuckGo and Youtube search on "Karl Lentz common law" for more answers than you have questions.