Whether or not your points are cogent is beside the fact that your began with an errant premise. I did not even continue reading the rest of your argument because I had to dismiss it out-of-hand as soon as you referred to (potential) taxes as "an untapped source of revenue".
Similar to the Arabs' 1960s "Three Nos" regarding Israel in which there is a presupposed non-recognition therefore no discussion was possible, I too have an inviolable "No" with regard to talking policies.
Taxes are never to be considered "revenue". That is too much placing of happy-speak euphemisms onto a detestable act.  Propone for higher taxes all you want. Cite benefits to this or that special constituency all you want. But once you take the position that the government is "missing out" on some unfairly hidden "revenue stream" - as if THAT's the detestable part, the dodging of taxes - then I'm done with you.TAXES - the gov't TAKING- is inherently bad. Don't point to where it isnt taking as if that is a tragedy