[alt text: an illustration of a person with a head-empty expression on their face, who is saying, "Not letting your cat outside is CRUEL!" Around the person are various gruesome scenes of different cats in distress. From the top and going clockwise, the scenes include: a cat being carried away by a hawk; a cat that is on fire; a dead cat in the road that has been run over by a car; several dead kittens; a cat that is missing an eye and various patches of fur; a cat that is feasting on a songbird; and a cat that is being carried away by a coyote. The person appears to be completely oblivious to these scenes of distress.]
This has gone like other "cats are not native to everywhere and are massively impactful to the areas in which they are introduced" threads has gone, and while it has been more civil than the last, is going a bit sideways.
Depriving cats of enjoyment and engagement is not nice, that's why we as owners can play with them using toys designed to satisfy their predatorial urges. Leaving cats unsupervised outside is also not nice to local bird populations, or those unsupervised cats who suffer unspeakable outcomes.