private business is oxymoron
private = you and another person
business owner = public, ie regulated by government...licensing, taxes, Commerce Clause, etc.
If you want to buy something from a private person and pay him/her in cash....even over $10,000..it is not covered by this law.
(But I would recommend you get a receipt.)
I disagree that a buisness owner is public, unless that buisness is an arm of government.
You do understand, I assume, that the idea that buisness as "public", is a hallmark plank of socialism and fascism, right? If we take away the right of individuals to be buisness owners, and force them under the auspices of government, or make them "public", we have abandoned capitolism and started down the road to fascism.
BTW, I feel that if our current course is maintained, America WILL be the next great fascist power in history, and those like you, who refuse to recognize the Bill of Rights as absolute, facilitate that change.
So be it...