@evan obviously it's less of a problem, but IMO it's still problematic given the possible/sometimes meaning of the phrase, and I think a lot of disagreement stems from confusion over differing meanings. Does it mean forcefully remove all Jews between the river and the sea, i.e. end Israel's existence? Or does it just mean free all parts of current Palestine from occupation and other oppression? I firmly agree with the latter but not the former. Hamas means the former. Does the typical student protester understand what they're saying, and can they articulate it? I'm against banning protests, especially on campuses, but I suspect a lot of the protesters could use more education and clarification on the whole situation and history. I can understand Jews being upset if they hear the phrase as calling for the end of Israel, even if that's not how the speaker intends it.
To be clear, I want a ceasefire by both sides ASAP because of all the innocent people being killed. That's the biggest and most urgent part.