Is not a Republic. That is a communist State called by the synonym "Democracy".
In a democracy no one owns anything because to join a democracy you have to sign over all you property and lawful rights to the collective will. That's what the Social Security contract was. You signed up for citizenship in a communist state called THE STATE OF UNITED STATES.
It is neither your Nationality (American National) nor the California Republic that is the problem. It is your voluntary entry into a communist state Social Security (Washington D.C. Internal government/Democracy) that is the source of all the misery.