I am not American. I am Dutch.

Not all of us, but there is a subset who passionately hate cats and are very loud in letting you know about it.

The damage done by cats is part of the human related harm. The cats did not relocate of their own volition. We put them there.

If you think any animal small enough to fit in a cats mouth is “some dumb bird,” then I gotta say Mr. Random Dumb Ape, you sound like you would lose an intelligence test to the bird

Well if some dude went around climbing trees, destroying nests and killing the native birds people would probably complain. The harm humans cause is due to their pets too, cats wouldn’t be where they are without humans. When there are too many outdoor cats in an area they breed a lot and effect bird populations which effects other parts of the ecosystem. Idk if it needs to be illegal but if it’s discouraged the numbers of cats killing off birds can be reduced. If people can teach their cats not to eat birds then maybe it would be fine.

I feel like this line of reasoning works for all pets. Like tigers, who cares about some dumb mammals. Also the damage cats do the ecosystems is part of the harm humans do.

Yes.