You've "also linked" a UK study of unclear relevance, but you've still never answered what "cat cull" you were originally referring-to as something we should "remember".

Nor is it clear what's the "prey" and "pest" in the case of house pets. What are you referring-to by those words? Similarly, when you say "this works the same everywhere they tried", what's "this"?

Yes, I'm being a "hardass", because your tone is one of "everybody knows these clear and simple things", but the actual details you've provided are grossly insufficient to know what you're talking about. Even when asked for exact details, you've moved on to other non-responsive digressions.

You are seriously overestimating the clarity of your communication, and overconfident about what anecdotes that others might "remember", and making unwarranted assumptions about what shared-interest/shared-history groups your readers might consider to be part of "we". You're expecting others to intuit lots of specific things in your mind you haven't described in sufficient detail for others to know.