LOL! It's quite easy. Return any tax bill with the note: "I will be happy to pay this if You prove I am subject." As taxes are voluntary, They cannot make such proof. The key is in not refusing, which creates controversy. A gentleOne never refuses an offer (to be subject, or any other offer), but rather, makes a counteroffer. This creates no controversy.
Always start a counteroffer with an expression that You will do as asked if... And then add Your conditions. "I will surely do that if You jump off a high cliff," for example.
And BTW... I am 63, no spring chicken. LOL! And I have been seeking solutions for most of My life - even as a child.
Taxes are voluntary? You are 63? OK, you are right, I won’t bother you any more.