I think there should be several steps before euthanising healthy animals. Put it up for adoption, a no kill shelter, let it go stray, a timed kill shelter, etc

This is okay but why are they asking for pets, that is my problem. They can source these things themselves.

We should not have to reach that stage

This is all sorts of fucked up. First, why do people get pets if they are becoming unwanted. Second, why does the zoo need to ask the public for animals. Third, wtf.