Ants are really considered insects like roaches or flies.
Although I even feel bad killing ants,, I wont bother them unless they’re infesting firewood I need, or are inside.
Ive killed millions of German roaches and countless spiders if a threat to me. I will not kill animals unless they pose a danger to me or my family.
I wont kill a coyote for example when a warning shot will scare it off.
My dogs killed a possum, and my cats killed a mole. That’s nature.
Some people feel guilty fishing too, or killing a cow.