The generational gap in support for Israel is caused by the fact that boomers and GenX made up their mind about the Palestinian-Israeli conflict back in the 80s and 90s when the PLO was suicide bombing Israel on a daily basis. The younger generation has only known Israel as the oppressor state under right wing idiots like Netanyahu. They also forget that Israel was the underdog when all of their neighbours ganged up on them and tried to wipe the Jews off the face of the Earth again, repeatedly. The younger generation just sees the power imbalance between Israel and the Palestinians and assumes that Israel must be in the wrong.