This is true - I love cats, have one myself (neutered of course) but the unneutered ones are a nuisance. Part of the problem is that (on my compound)people feed them so they breed even more and 'invite' their friends to the party.

Sadly if the municipality became involved, I don't think they would spay them - I suspect they would go to that great mouse chase in the sky. QAWS may be able to give you some advice as to what to do.