President Gabrielle Starr of Pomona College just demonstrated the appropriate response to student protestors who invade university buildings. She gave them 10 minutes to leave, they refused, she had the police arrest and remove them, after which she suspended all of them, meaning one supposes they lost their student status (and tuition).
Such no-nonsense behavior is amazingly uncommon among college administrators. The last time I remember it happening was at San Francisco State University when President S. I. (Sam) Hayakawa did something similar.
Students are entitled to their opinions and to expressing same. They are not entitled to interfere with the smooth operation of the campus they attend if, in their judgment, that campus isn't toeing the line they prefer. Being a college student is a privilege, not a right, and privileges can be forfeited when misbehavior occurs.