Do you think that food magically makes animals procreate? Feeding is not the problem. If a colony has been properly trapped, neutered, and returned to their location, they cannot reproduce. Feeding them keeps them from wandering around in the neighborhood, digging through trash, and killing wildlife. The key is to trap, neuter, return, and manage the colony. Unfortunately, there are many feeders that do not spay/neuter and this is a problem - I completely agree. That is why TNR needs to be embraced - one of the biggest barriers to having fully sterilized colonies is not being allowed to trap due to management rules. Additionally, there needs to be enforcement of animal abandonment laws... maintained colonies only increase when people abandon their unwanted, unfixed animals in a colony due to their negligence.