You know this is a bad argument. Being a taxpayer doesn't convey some superior status. You are a member of the collective with restrictions on your behavior.
You can't dig up roads, take library books, or drive cop cars.
You can't dig up roads, take library books, or drive cop cars.
Destruction isn't the point. The point is that something paid with public money isn't available for the public's use. You have no rights to any object just because you pay taxes.
A government levies taxes and through appropriation spends that money. If a park is built, then fine use it. If a tank is built, then too bad that's not your tank.
Your argument doesn't make sense for source code created by a tax funded entity. It makes sense for private information, or a publicly funded physical object, but this not either of those. I have a hard time believing you don't realize this, why even argue the point? Do you really think someone shouldn't have access to source code payed for by their own taxes?