[maratd]

> It's like you don't really have a right to keep your money unless it's accessed via some plastic card or routing number.

They have an apparatus in place to track all of your money, as long as it's in electronic form. That way they can control your spending and make sure you don't spend it on things they don't like (drugs, prostitution, insert illegal behavior/good here). When you use cash, a method they have limited control over, the very act of using it becomes subversive.

Why would you use cash unless you wanted to do something illegal with it?

That's the question ringing in their minds. The very act of using cash becomes ground for suspicion.