>c) So I don't know how these people are counted, but there are absolutely millionaires and billionaires out there cheating on their taxes and claiming no income (e.g., the current president). It's totally plausible that they get listed in the "under 25k income" audit section despite the fact that they are in fact the uber-rich that is the intended target of the outrage.

There's a sleight of hand in your argument here. I said under 25k with EITC. You can't get EITC if you're "claiming no income." That's why it's called earned income tax credit as the credit is intended to help offset welfare cliffs as you start to earn more money but at low incomes. So your whole paragraph here about <25k is null and void as "millionaires and billionaires out there cheating on their taxes and claiming no income" aren't in the <25k EITC bucket I mentioned, they're in the bucket of others earning under 200k.

(As an aside, if someone actually thinks earns nothing and doesn't want EITC which they can't get anyway with zero income they probably won't even be filing, there is no "return" to audit.)