If it wasn't for the need for local resources from the South Continent of American sovereignty, Chen Fei wouldn't care about those who refuse to cooperate with the evacuation, like those large landlords with private lands, drug farmers growing marijuana leaves, illegal forces selling marijuana leaves, and armed smugglers. Since they refuse to leave, they might as well stay and wait for death and see if the parasitic species will be polite to these self-served meals.
But even Miyoshi Xuesen, who is ruthless and cunning, doesn't suggest that Chen Fei treat human lives so carelessly.
The disparity between rich and poor in the South Continent of America is extreme, the poor die in poverty, the rich die in wealth. The wealthy are the main taxpayers, and those people and forces capable of resisting Combat Mechs have some assets. The local sovereign authorities still count on them to pay more taxes to subsidize the government expenses, and they can't be casually abandoned.
