"My proposal would fit on a post card. which is a simpler starting point?"
Where is your proposal documented?
Since it only consists of a postcard, does that mean that you could get it implemented without a bill in congress?
Can you elaborate on that? I'm sure many would love to know how you change the revenue system of the federal government without introducing a bill into congress.
my proposal is too simple and there ain't any loopholes. that is why nobody introduced it.
"All income is income and must be declared
All income is taxed at the same percentage for every american.
Taxes are payable on the first of every month.".
no exemptions, no exceptions, no hassle. if you know the percentage, you know how much to pay.