Wow what a comparison you made. The one supporting Israel in USA has same sick mentality like you.

They celebrate and this gives you right to kill them in thousands.

Between Palestinians genocide is carried out way before 9/11. It started with 1948 NaKba.

Below is article about confessions of Israeli veterans about there role in Palestinians massace in 1948 Nakba. This is not the first and only massace, it continued from time to time till date.

https://www.middleeastmonitor.com/20140217-israeli-army-veterans-admit-role-in-massacres-of-palestinians-in-1948/amp/

In 1948, there was no 9/11 then what's the logic of Nakba and innocent Palestinians massacre.