We aren't talking about a recent man made phenomena. Cats have been 'domesticated' for pretty much the entire history of civilisation. As a consequence the impact of that activity has continued unabated for all of that time.
Now were talking of introducing additional controls because as much as we've successfully domesticated cats, we have been less successful (ie not at all) in curtailing their predatory instinct.
That they kill creatures is something I've never disputed. I'd rather they didn't, but I don't get worked up about it. It has been a natural occurrence for millenia.
I might read your quoted research when I get home from work. It is impractical to do so while using tapatalk at work.
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