Every one of those problems you list can be alleviated if the cat is kept indoors. Maybe it's the people and cat haters who should be euthanized.........
You wrote “Every one of those problems you list can be alleviated if the cat is kept indoors.”
You are absolutely correct.
However, 99% of cat people don’t do that and that’s where the problem exists.
To me, feral and unrestrained cats are vermin and no different than being infested with rats or mice.