Why would anyone demand a ceasefire from Israel instead of surrender from Hamas? Israel, after all, is the only liberal-democratic state in the middle east — the only place in the region where it is safe to voice liberal and progressive ideals — while Hamas is a terrorist organization with the primary goal of elimination of the state of Israel, who has demonstrated willingness to immiserate and sacrifice the lives of its own population to achieve that goal?

The same reason progressivists endlessly harass liberals about their unconscious racial biases instead of confronting explicit racists: Convenience.

It is much easier and more gratifying to poke at people who share your values and actually feel the sting of your criticism and the force of your reason than to deal with the real problem of evil.