I got that impression from how you had worded your response to me, and in no way have I been evasive at all. I have answered your questions and am encouraging you to do some research on your own. But they way you are asking questions is the way someone asks that has already made up their mind. If you are truly interested in understanding what modern zoos stand for, education, conservation, animal welfare, you need to start listening. Zoos aren’t some major profit driven company, many are nonprofits and operate close to the red on a yearly basis and are constantly doing everything they can to improve animals habitats and health (both mental and physical).
I have been in this business a long time and care more about animals and their happiness than anyone can truly know without having done the job.
See, your gorilla example is a perfect example of zoos changing how they do things to better the animals lives. When I started back in 04 at my second facility the gorilla exhibit there was subpar, since then they have done two major renovations costing over 10 million dollars. Now they have expansive habitats inside and outside, it’s amazing.