It's been this way for a long time. The terror bombing of German and Japanese cities and the way it was justified and seen as different from the atrocities the axis committed against civilians has caused the West to become brutal in a way it is blind to.
This is ethnic cleansing dressed up in the clothes of protecting civilians.
If they leave, they will never be allowed back to their homeland. If they don't leave, they must be legitimate targets for bombing.
Like in Ukraine, it is not enough for one side to stop the violence, they must also reverse the occupation.