Posted as a new thread:
There is also a user with an anti semitic username that calls for a genocide of the Jewish people and is a pro Hamas slogan. This is the link to the post I saw:
https://www.mumsnet.com/talk/_chat/4918645-war-or-terrorism-2?reply=129974329&utm_campaign=reply&utm_medium=share
For context, this is the link that helps explain why this is anti-semitism:
https://www.ajc.org/translatehate/From-the-River-to-the-Sea