These people harbored intense self-hatred, and naturally, Alex couldn't allow them to stay and become potential threats. Moreover, it would be a shame if someone interesting like Liu Feifei, the "virtuous and chaste woman," killed herself. After all, Alex wasn't done having fun with them yet.
The psychological states of these people had already faced collapse, their will to resist shattered. Those who dared to rebel had been killed. The remaining ones had lost their resistance, and the process of enslaving them would be quick.
Before moving on to establish new colonies on the way to the Devil's Capital, Alex needed to wrap up the affairs of these survivors from the City of Darkness. Although DreamGun managed everything well and in an organized manner, Alex still had to eliminate all unnecessary hidden dangers.