Flippant thought for you but....
There are approximately 2 million University students in the UK. Currently fees are no more than £3000 per year. So, if you were to give the Trotskyites what they want, i.e. free University education, then you need to find, £6000,000,000 (that's £6bn) every year to pay for it. The Department for International Development has a total budget in excess of £7bn per year.
Quid pro quo?
Note: Something tells me lefties wouldn't buy the end of international aid in exchange for free education.