Instead of protesting against 20,000 killed in Gaza or hundreds killed in West Bank (because most Israelis don't see Palestinians as humans) or even the Israelis who were killed because of Bibi's incompetence/malice, they are mad that he has been in power for 16 years as if it means anything.
Liberal Israelis are angry because Bibi is taking the mask off Israel and showing it is not a real democracy and it never was one.