I think it's a bit of both because Milei's campaign was focused on removing privileges from "la casta" (the establishment, so perhaps similar to Trump when he promised draining the DC swamp).

So it's both a fuck you and hope for restoring what made this country once great (the liberal ideas of Alberdi, Sarmiento, Roca - 1880-1890s)

Tax are ridiculously high (IF doing everything 100% over the table) but no they won't reach 80%. But that would be possible if paid in foreign currency, paying taxes, taking out USD in pesos from the bank and reconverting to USD in the black market.

Clarifications: Yes, you must convert to pesos when you're paid from abroad, that is essentially how they steal from all exports (in particular agricultural, that on top of that are heavily taxed). And, why wouldn't you be able to buy USD with pesos again you may ask? Because buying is restricted, they'll sell you 200 USD a month IF you're lucky.