Hypothetical: Burglar breaks into my house at night, with me and the kids present. I use deadly force against him because I have reasonable fear for my life and the lives of my children. Obviously, I don't want to shoot the burglar (a lot of blood to cleanup, I may have to hire a lawyer even though I am innocent of any crime, etc.), but the burglar forced my hand. You must admit that the moral responsibility for the burglar's death is on the burglar, not me, in this hypothetical. The burglar chose to create reasonable fear of death in another person. You can say I "committed a homicide" (if the burglar dies), but that doesn't mean I did anything legally wrong or even morally wrong (even in the eyes of the Church, which you like to bring up, even though you yourself support state sponsored murder against Church doctrine). The burglar, on the other hand, definitely did something legally and morally wrong (even in the eyes of the Church). So, if you were to point out to others that, in this hypothetical, I "committed a homicide," your statement would really just be an attempt to mislead your audience into thinking I did something illegal or immoral.
So, saying that ICE is committing homicides in this context is really just an attempt by you to trick people into believing that ICE is doing something illegal or immoral, in order for you to obtain some political gain from these homicides.
I know that if I fail to comply with law enforcement while armed (either with a gun or a vehicle), I risk getting shot. I don't see why these agitators in Minnesota deserve special treatment that I would never receive.