Yes I’m well aware of the difficulties involved, but they can be mitigated, as your source explains. There’s more issues than just keeping them from going stir-crazy, but a proper zoo (the only kind I advocate for) will do their best to address all of them.
To me your view seems woefully ignorant, possibly even delusional:
https://northeastwildlife.org/why-do-zoo-animals-pace-back-and-forth/
Yes I’m well aware of the difficulties involved, but they can be mitigated, as your source explains. There’s more issues than just keeping them from going stir-crazy, but a proper zoo (the only kind I advocate for) will do their best to address all of them.