It refers to genociding the Jews to get back the area. Technically it doesn't, like saying 'all lives matter' isn't technically anti-black, but it is. Wearing a swastika might mean you support the Hindu notion of well-being, but it doesn't.
Symbols have meaning and hiding behind technicalities allows dog whistling and regressive behavior.
Yes, Israel is abhorrent in its actions in Gaza, and a form of shared peaceful cohabitation in the area would be ideal. But allowing slogans that are known to represent genocide, doesn't help.