I don't really know any Jewish person who doesn't sympathize with this, even if where I live is way too far from LA or NYC. I honestly don't know where these people are who support what's happening to the Palestinians. Maybe we live in a bubble?
(Checks dictionary) Zionism is simply supporting the development and protection of a Jewish nation in what is now Israel. Technically anyone who supports Israel's existence at all, is a Zionist. I was actually meaning to say those who support crushing Hamas, even all of them that I know find Israel's actions heinous to the point of kicking Netanyahu out of office. The internet Zionists are far more virulent than what I see IRL. I don't know any Jewish people who want Israel to disappear as a nation, which would be the dictionary antonym to Zionism.
Seriously? What Facebook University source did you get that from?