When institutions like Columbia accept Federal grants and participate in. Federal loan programs they agree to abide by aspects of the Civil Rights laws. These laws are being violated when students are harassed, threatened, and in some cases physically attacked, and advised by administrators that it is unsafe for them to be on campus, solely because of their Jewishness.
When President Eisenhower was confronted with a comparable situation, with respect to Black students being threatened, he sent in the National Guard to protect them, so that they could continue with their education.
If the Columbia administration cannot put a stop to what is going on immediately, Congress should take steps to rescind all Federal funding to Columbia. If President Biden had any leadership abilities, he would have followed President Eisenhower’s example, and called in the National Guard by this time.
He's senile.