

The terminology in Aus / NZ is pet (owned by people) vs stray (socialised around people but not owned) vs feral (not socialised to people).
Generally speaking, pets & strays like people - they’ve been handled as a kittens. Pets can become strays and vice versa. But feral cats (past being a kitten) will never become stray / pet (and vice versa) - it is only the next generation that can be raised differently.
While the article is defining feral cats as any cat that isn’t a pet, in reality the vast majority of what it is talking about are truly feral cats - nothing like a house cat.

The US for years kept the screwworm from spreading back into Panama by maintaining a virtual wall of sterile flies across the Darién Gap, which was a cheap way to protect all of North America.
But then stupid MAGA politics came along, put idiots in charge, and they decided that they’d rather try to protect the Mexico-US border and not give Mexico and Panama the incidental benefit, rather than protecting a smaller border that happened to help other countries. https://www.msn.com/en-us/news/world/we-once-rid-the-us-of-this-nasty-parasite-now-it-could-be-coming-back/ar-AA1DKRSV has some information about how it became a problem again.