I would venture to guess that Mr. Giacomo would be more upset about 10 feral cats being culled than 10 monk seals dying from toxo.  I'm a cat lover, own domestic cats (if there is such a thing as humans "owning" cats), and have fed and watered feral cats but no longer do so.  Ya gotta ask yourself - how does human and animal society and the environment benefit from having hundreds of thousands of feral cats despoiling the fragile Island ecosytem?  Answer:  They don't.

Solution:  Place no limitations on properly cared-for domestic cats, and cull 100% of the ferals that can't be adopted out.