Here is such a gun.
Presently lots of Blue States and cities are seriously strapped for cash, having run out of other people's money. They look to the huge endowments of the Cathedral's universities, and, in the immortal words of Gollum---they WANTS it. So far there have only been a few noises made in this direction, but the inclination is clear. We need only encourage such. Here are some memes we can feed to the far Left.
No Cathedral university with an endowment bigger than X should charge any tuition to its students. It is
We should tax the hell out of any endowments bigger than Y.
Basically paint them as Scrooge McDuck. It doesn't matter what they use the funds for, most likely pouring it down rat holes or setting it afire is what will happen. The important thing is to get the endowments looted.
Should option 1 be chosen, and I think it has an easier time politically given the current zeitgeist, you've got another wonderful result:
The students will ironically feel LESS grateful and loyal to their institution. This is neurotypical ingratitude for you. What is obtained cheaply is generally held in contempt.
Also, the lack of the debt burden on the graduates will make them much more likely to go 'off the reservation'.
The seeds and ideas are already there, it is to us to water them and to supply the rope to the Cathedral's acolytes with which to hang themselves.