You guess they're not the problem? You seem to have difficulty with cause and effect.
Sorry, that was sarcasm. Based on the comments in the article and all the comments by the cat fanatics here at free republic.
Any time you attempt to put forward a solution that deals with the problem (feral cats, not house cats, that destroy an ecosystem they shouldn't be in) - the people that dare suggest pest control are labeled as psychos and murderers and whatever. Nary a mention is made of the irresponsible pet owners who either abandon their unwanted pets or have their 'outside cat' get outside their property and then go feral.