Israel has left Palestine alone since 2005. They allowed Palestine to use their power and water, because Hamas (who Palestinians overwhelmingly support AND voted in) refused to build those resources in Gaza. Instead they chose to build tunnels for terror. Palestinians cheered when Israeli's were murdered, and the protesters literally changed "from the Mountains to the sea" which leaves no room for the legal state of Israel.
If you're pro Palestine you are pro Hamas. They happily started a fight, and they play victim when they lose, rounding up the simple minded as supporters.
Those "peaceful protestors" were smashing windows and camping in tents on the lawn of the Universities. And that's not even the worst part, where they are actively supporting Hamas. Sounds like they're just angry about facing consequences, to me.