Around 30 years ago I was talking to a Mississippi State Wildlife Biologist. I disagreed with him on one thing. He thought we should not kill rattlesnakes.
On the other hand he said he killed every feral cat he saw in the woods. He said they were one of the most harmful things there is. I agree and I like cats.
I live in north Texas. Every feral cat out there is one less house pet the owles and coyotes eat.
Can’t see them ever becoming a problem here. They are not that high on the food chain.
Did you ask the “Biologist” if he was also fond of rats and mice?