You've just justified tearing the entire university system asunder.
If student tuition could keep academic departments afloat, we would never hear about budget cuts. But it's fantasy. The University of Florida, for example, after budget cuts, will be getting over $800 million dollars in the next academic year. Divide that by roughly 50,000 undergrad + grad, and that's about $18K/student. Tuition is $4K in-state, $24K out-of-state, and the student body definitely skews more toward in-state students. So money received from tuition pales in comparison to what the state sends.
In higher education academics, departments are funded, and justify their existences, through grants. Unfortunate as it may be, that's the way of life. And UF's CS department was not taking in enough grant money to justify remaining a standalone department.
IMO, people are looking at this a bit backwards. This should be highlighting what poor stewards of tax money public colleges and university have been and continue to be. A lot of attention is put on the athletic department, which subsists without state or university funding, turns a profit, and is a major donor to its host school. Yet a blind eye is turned to the fact that this school is raking in billions, yet cannot find a way to keep legitimate academic programs intact.