The only solution that would work is forcing everyone to pay into a communal fund, but that would never work for many reasons
Among them
1) You cant force non-relgious jews to pay if they live in a religious community
2) The issue of different Hashkafas like Satmar vs MO schools (Do MO’s want to pay for non-zionistc yeshivas that dont teach secular studies vs charedim who do want to pay for secular studies)
3) How do you really know how much money people really have to pay without seeing tax returns, pay stubs and bank accounts
4) Someone might be shunned by MO’s for not paying, will they also be shunned by Satmars for not paying
5) Are you really going to force eldery on fixed incomes to pay
6) Who decides what is “Luxuries” in order to determine what to pay. Should someone give up a new car to pay for the communal fund.
7) and even if you Shun someone and it works, they can just leave and go elsewhere , where they arent shunned . (Shunning is the only real enforcement that there is in the US)