This looks like one of those "well, duh" scientific studies that feels obvious but hasn't necessarily been done before.

Kin to "heterosexual men are aroused by lesbian porn" or "support for banning trans girls from sports decreases among those who actually know any."

Basic fairness says if the rich aren't paying their fair share, we should either raise their taxes or lower everyone else's. (Which could lead to hyperinflation for all most of us care, except that the rich are better suited to fleeing inflation.)

Isn’t that assuming you’ve already won and skipping straight to the end? Politics and policy are not simply a matter of deciding to do something. You actually need to have the power to do it. The rich have a lot of power, that’s why they pay so little taxes.