It's a fad... Bunch of gay celebrities, personalities and people with giant egos love the claim to fame and bragging rights for the game catch. It's not a matter of helping balance the ecosystem, it's a matter of personal gain and commercial greed.
"If I saw a child being pursued across a field by a pack of dogs, I would be horrified: his fear would be my fear, and his pain when caught would be my pain. This is what I feel when I see a fox in the same situation." –opendemocracy.Net