We are so far removed from what ICE is going

Letting them die isn't "becoming them," it's allowing them to face the consequences of the rules THEY are imposing. It's Natural Selection, which they've chosen to not believe in. Why should we save them from themselves? Let nature take its course.

Proactive vs reactive, these dipshits are going out of their way to cause suffering and death. Watching them bleed out and die or refusing to render aid or even just offing them yourself isn't becoming them.

Fun fact during WW2 on the Pacific front allied soldier (American, Australian, New Zealander, Canadian, etc) took to shooting surrendering or injured Japanese troops. This would usually be classified as a war crime, but there are exceptions to that rule in this case since the Japanese soldiers had a tendency of playing dead, trying to kill medics, falsely surrendering, and pulling the pins on their grenades and blowing themselves up.

One does not become their foe by reacting to them accordingly. One becomes their foe by proactively doing the same thing, like the Nazis and Soviets raping and murdering each other and the territories and people between them.

Marvel ass logic

Dunno, guess you should ask all the allied WWII vets who became Nazis by killing them.