Charliehall….
Catholic High Schools receive support from the diocese and other parishes that do not maintain schools. Our local Catholic High School charges $14,450 tuition (which is right in line with what our town spends on public school students).
One of the biggest differences in funding the church and its agencies and Jewish institutions is that: When goyim go to church on Sunday they are expected to be carrying money and place it in the collection baskets/envelopes. When most Jews attend shul (Shabbos/Yuntif) it is assur to carry money and only pledges may be collected.
Because Catholic churches and schools are under the authority of a Diocese, failing institutions may be ordered to merge or close. There is no central Jewish authority telling under enrolled yeshivas or shuls that they must merge for economy reasons. Also, There does not exist the doctrinal differences that make so many flavors of Yeshivos desirable.