ethnoreligious state that excludes people of other ethnicities (Arabs, Africans, etc) and other religions (Muslims, Christians, etc)

So what? Thats their business what rules they want to have inside their country. Thats nl reason to attack them.

forced expulsion of those people, so it must be taken down and the genocide must cease.

Forced expulsion is dtill inside their own country. So you take them down with a genocide yourself? Fight fire with fire?