If you could remigrate every Third World immigrant, the political class would replace them within months, after the dust settled. And they would lie about it.

Instead, remigrate the political / media / bureaucratic class (but keep their loot). Hell would be the ideal destination for them, but Gaza or South Sudan will do.

Use the loot to pay migrants and (especially) the woke native-born to renounce their citizenship and leave peacefully.