I think it does need to be acknowledged that there is a faction of people that absolutely do support the destruction of Israel and Jews. Hamas was elected, it should be remembered.
That absolutely does not mean that support for Palestinian statehood requires you to be opposed to Israel's existence, but advocates for peace should be very clear that this kind of rhetoric is absolutely not tolerated. And conversely, advocates for Israel must absolutely reject the people that would support the complete removal of Palestinians from Gaza and the West Bank.
There are extremists on all sides, and genocidal rhetoric must not be tolerated, wherever it comes from.