I agree, I'm quite comfortable that under his leadership Israel is committing genocide, so no I wouldn't approve of it regardless.
But, given he himself is using that kind of argument to justify why they should have the land, it's relevant.
Its like saying Aboriginals were here before Colonials, and they liked it here and had special places, therefore ...today in 2024 we can recruit people from overseas to identify as aboriginal and they can help us slaughter everyone else.
Most sane people wouldn't think that was anything like a solution.