In the mirror world, this slogan is controversial, and is a veiled threat of genocide against the Jewish people. In the real world, the ethnonationalist Jewish-supremacist state of Israel has been committing a genocide against the Palestinian people for the past 75 years, and this slogan is a slogan of liberation for all the people who live between the river and the sea. As with similar slogans in the anti-apartheid struggle in South Africa, for dominant political tendencies in Palestinian civil society it's about equality between all peoples, not genocide. Genocide, rather, is what Israel is doing. As the Israeli authorities openly and publicly say, this is "Nakba 2.0." We should believe them, they're serious.