The Catholic Church is a supranational entity that will survive as nation states rise and fall. No one in 2022 puts a gun to your head to join nor stay inside it. There is no forced tithe. You are encouraged voluntarily to donate money and assist others but unlike the government not doing so is something you have to deal with yourself.
All churches and orders generally have to be self sustaining. The Vatican is not cutting checks - money flows up but doesn’t flow down and they will close churches if they aren’t cutting the mustard. This encourages self sufficiency and creativity. For example my church owns a lot of rental property and has other income generating assets.
Catholic schools are generally far superior to the local public schools. They charge reasonable rates. I live in an expensive city and the local Catholic elementary school is $10k per year which is a deal considering the public school spends $25k per student and you’d have to be out of options to send your child there because of the violence and awful nature of the education (basically ranked 1/10 nationally).
It’s hilarious that you think I haven’t thought about this deeply. What’s more shocking is that people go through life oblivious to human nature and reality. They think by taxing productive citizens and enterprises all of societal flaws can be solved. The true solution is to let all of us work communally to solve our issues and keep the greedy, evil, self serving, and venal politicians away from the wealth we earned with our own hands.