The first post is one saying that Jews must make a loyalty pledge against Israel. Only if they pledge to disavow their connection to the Jewish homeland should they be safe from antisemitism.
This is the standard Loyalty Pledge trope brought into a modern context.
They follow it up with an image of children evocative of the Blood Libel trope.
https://mastodon.social/@TheAlexPerspective/115306046785616946
https://ghostarchive.org/archive/yob5P