Bullshit. It's not a social event to go to the library, and they have the same access as any student to digital facilities, so focussing on the overseas students' mental health is a falsehood, covering the increased cost and potential loss to a university.
Here, is in fact, why consideration is being given to overseas students.
Coronavirus will put almost every university in financial jeopardy unless the government steps in, vice-chancellors say
www.theguardian.com
The numbers involved are less than the numbers of staff - which if we're talking mental health issues, then they would consult them *as well* rather than just offering a dictat to open up for others.
Seems like you just want an argument without any awareness of the reality, so will leae you to it.