Not even Israeli media agrees with you: https://www.thejc.com/news/world/greta-thunberg-gave-stage-to-activist-who-supported-october-7-terror-efdtlitc

There is no suggestion that Thunberg has expressed the views espoused by Rachdan.

Also, conflating criticism of Israel and antisemitism is by itself antisemitic, as you’re placing the blame for the actions of the Israeli government on Jewish people in general. See also: https://jerusalemdeclaration.org/

7. Holding Jews collectively responsible for Israel’s conduct or treating Jews, simply because they are Jewish, as agents of Israel.