The simple answer is for Christian groups to simply not take funding from the school, then they can do whatever they want.
The issue is more complex than simply not taking funding. Students are assessed fees in addition to their tuition by student government which then distributes funding to campus organizations. So Christian students will be forced to pay for other organization’s budgets and facilities and will never have access to money and facilities of their own.
Exactly....and you can bet the Islamic groups will easily find private funding.