She's coming across as obsessive, borderline unhinged. Her reasoning skills appear to have been pushed aside and replaced by blind hatred for Corbyn.
She identifies as being Jewish but what exactly started this obsession of hers over Corbyn in particular? Had she been emotionally abused in the past for being Jewish, maybe as a child for example?
She really needs to take a few steps back and look at some facts instead of raging all of the time. Some introspection over this recent issue would be a good idea too. She's also due to have a baby soon, I can't imagine her stressing out over this is going to help the health of her unborn child, let alone Riley herself.