While I agree with you there is a thing called the IRS that is not limited to your argument. I never said there was anything wrong or illegal ...I said it's pretty damn stupid for obvious reasons. Unless one has a ulterior motives for transporting such money. Pretty much every drug dealer does!!! It is illegal to transport cash in excess of stated sums!!!! As for being innocent until proven guilty ...you are aware thousands of people are locked up awaiting trial!!!
As long as you report the income for taxation the IRS don’t care. It can be illegally acquired, there’s that whole “other sources” section.
There are valid reasons to move cash. Many auctions are cash only. Including, amusingly enough, most police auctions of seized assets.
You’re whole argument is built under the same crap assumptions the government uses to limit our freedom.