The public schools would rejoice. They get enough in state and federal aid to cover the marginal costs. The people who run the city would relish the opportunity to break down a community they see as infamous for gender segregation, homophobia, ethnocentrism, and religious fanaticism.
By your logic, the response of Jews to the holocaust should have been to organize a march to the nearest concentration camp.
If want lower tuition, all we have to do is to stop teaching Torah.
That’s like dealing with the high price of food by starving. Same logic.