When Palestinians call for freedom from the river to the sea, they are calling for decolonization and the dismantling of this racist colonial entity which dominates their lives, and seek to replace it with a state that would not exist at the expense of the subjugation of others.
This is hardly a new or radical position, such an entity was suggested by the Arab states as a counter-proposal to the 1947 partition plan. Naturally, this was rejected by the Zionists. That we barely ever hear about the offers that the Yishuv/Israel rejected should be an indicator of the nature of mainstream discussions on Palestine and the silencing of Palestinian voices. The Palestinian Liberation Organization also called for establishing a secular, democratic unitary state for all its citizens. Naturally, none of these proposals included genocide, ethnic cleansing or mass murder.
Deadly Air Strike in Gaza Area Where Israel Told People to Go.