People need to understand that zoo's are keeping many many animals alive. Does it suck that's how it needs to be? Yes it does. But humans suck. You want to blame anyone, blame those killing the animals not conservationists.
It's like regular animal shelters. You know why they exist? Because people over breed and now we are the evil ones because we don't have a "No-kill policy."
Sometimes things are necessary and until people stop killing these animals, zoo's are necessary. And yes, I know there are horrible zoo's in the world with deplorable conditions, these need to be closed down and better regulations need to be made.
I myself plan on being a zookeeper in the future, people who work at zoo's or with any animals are some of the most caring people you will ever meet. We genuinely care for these animals. Zoo's help educate the younger generations about respecting these animals and why eating tiger meat is not actually medicine and why their fur looks better on the tiger than it does you. You have to teach people to be respectful of these creatures and then maybe we won't need zoo's. Why can't you teach children without zoo's? Like I said, people are evil. Sadly, people react differently to REAL examples. "You see that elephant, people are killing them for their ivory tusks and what not and you see that rhino, not many are left in this world." it instills the need to protect these animals, you see the beauty of nature and you suddenly have the desire to teach more humans about it. Steve Irwin is my hero as he is for many many many people. It's people like him that will make this world better for animals. So stop pointing your fingers at us and saying we are the evil people, at least we are here doing something, even if it is only one generation at a time. We are not very many people, we can't do everything. I feel some of you would rather these animals just go extinct - because of humans mind you - than us trying to learn and care for these animals. Zoo's are not perfect solutions but they are a start where many many people start their efforts to help animals and become involved. Again, some zoo's really are deplorable like the one in Indonesia with the starving bears - that is cruel and those people are evil, no question about it but most of us in the first world who work with animals are not doing it for the money. You don't work with animals for money, you work with animals for passion and because you love them.
If you are upset about zoo's then go make a difference and you may very well have to start in a zoo setting before you fly out of this country to help those still in the wild.