And the way you know that is?
The only stray cats around her that survive are black and dark grey ones and with a specific personality trait. All the others are picked off by birds of prey. Hawks during the day. Huge barn owls at night. But the black and dark ones that survive hide. If they have to move, they will scurry along the corner of a wall (difficult for a bird to strike in that angle, are harder to see at night as owls are the greater danger, and overall live in fear and hiding. Any sound startles them and has them running for cover. To hide 99% of the time only so cautiously going out if food requires it - and most are just skin and bones as a result. And IF the outdoor cat sticks to that, it has a very good chance of survival unless dying of starvation as the alternative - where cats that don't and otherwise are easy to see and easy target don't.
We've rescued many cats and kittens in that situation. When they are down to the last days of starving, no strength left, they will finally just lay down in the open to die. If we see that, we'll rescue it. If we don't, it won't be there the next day. An owl got it.
You demand people live that way too, don't you? To hide. To scrurry as fast and unnoticeably if the person just has to go out of their house with bars and locks, avoiding all people and public places. To live in fear and hiding - because you claim that is the only ethical way of life and law should tolerate nothing else. If a person breaks that way of living, whatever happens to the person - child or adult - that person asked for it and had it coming anyway. If a woman is walking down the street, is kidnapped, raped and killed it's her fault for recklessly being in public.