Although his words were calm, his meaning was very clear: if there's really no other way, they can only abandon them and let the remaining Human Race regenerate.
Twenty million humans might sound like a lot, but compared to the nearly ten billion before, it's really pitiful.
Since the last cleansing by Tu Hongwu, this is the greatest loss the Human Race has suffered.
In fact, if it weren't for the highest combat power still being around, it could practically be considered an extinction crisis.
The situation is very clear now: as long as these people are alive, even if they abandon those people, the Human Race can recuperate, slowly grow stronger, and even their presence can make the entire Human Race stronger.
Su Mo didn't speak, but internally, he wasn't very accepting of this method. Although he was extremely ruthless to the Alien Race's means, in his eyes, all non-human life was just a series of numbers, only attribute points he could freely use.
