It means that Israel should stop committing war crimes. Specifically that Palestinians should be free, and not caged, oppressed and in perpetual fear for their lives in the geographic area which lies between the Jordan and the Mediterranean. The subject of the phrase is Palestinians; Israelis aren’t mentioned, let alone Jews. It’s not about oppression for your group, it’s about freedom for another. This is evidenced by the complete lack of references to Jews or genocide in the phrase itself. It’s very, very basic reading comprehension without any mental gymnastics necessary.