No, these are two different issues.
In what way is it hypocritical? Is the support for public education comparable to the right to sell one's body?
Gustaf's argument was basically that it's really weird to consider it immoral to oppose paying for education but not sex because that involves selling humans or something.
Not being able to pay for education means it that would all be provided by the government. Not being able to pay for sex means that one could get it for no pay with a consenting person (without involvement of the government), or not at all.