How am I hand waving it? I’m stating an obvious truth. What impact on wildcats do you expect to come from cats in Cornwall, Ipswich, or Manchester?
I think you don’t have a clue what you’re talking about. Yes, I would like you to google cat death counts and show me any evidence for what you’re saying. I wouldn’t be surprised at all to find that cats sometimes get killed by other animals, but to suggest that it’s a significant cause of death or that they’re the reason that foxes are coming to ‘human settlements’ is complete nonsense. You make it sound like packs of badgers roam the streets of London at night.
Foxes in cities are very normal. They’re basically the UK’s raccoon. They scavenge things, including the bodies of cats hit by cars.