There is no evidence to suggest that these students shouted pro-terrorist slogans, spouted the end of western civilisation, or supported people who celebrated 9/11. And you are not there to "study" - at postgraduate level you are there to think. I deplore what has happened in Gaza and the attacks by Israel. I also deplore Hamas and the attacks by them in Israel. Nuanced thinking and rationalisation is something universities encourage, and if there was more of it around in the general population, then maybe we wouldn't be debating why Trump is in a psoition of power.
When I was a student (and subsequently) I often attended demonstrations to free terrorists. I recall one of them was Nelson Mandela. Hamas may be terrorists. Palestinians are not. Attacking an entire people for the actions of a few is also terrorism. But then, the Americans and Israelis aren't the only ones guilty of that. Britain hasn't got clean hands either.