it would be wise to move a starter population of around 20 animals into a captive population, breed them, and relocate them back to Sumatra, Borneo, and Malaya....
are you forgetting that this has already been attempted and failed miserably?
zoos captured many sumatran rhino that were in habitats "doomed" for clearfelling and moved them to zoos in the UK and America. of all the animals moved only a four survived. rapunzel, who never bred, those at cincinnati and torgamba who was repatriated back to indonesia from england after the zoo he was in wisely accepted they had failed at even keeping their rhino alive let alone propagating them...
so the question is. where did zoos go wrong and who says anything has changed?
well for starters, you don't scatter the few captive members of a critically endangered species on public display in a bunch of temperate zoos all over the northern hemisphere. thats showing a complete lack of respect for their value and the contribution they can make for their species survival.
secondly, i love that the death of all the rhino in malaysia is constantly touted as a reason why the US is better equipped to keep them.
at a guess id' say the malaysian/western tally for premature death of captive sumatran rhino is probably closer to equal.
thridly, if the east really isn't as good at basic husbandry than the west - then
teach them. because way kambas has plenty of advantages over an american zoo.
lastly, "the don't put all your eggs in one basket" attitude is a wise one, though i think when it comes to as dire a situation as it is with the sumatran rhino, the advantages of a consolidated outweigh the risks.
and example is incompatible pairings. you may have two animals that would have otherwise bred kept at two different zoos, just for the sake of public display, which has zero priority here. neither animal may be interested in their mate, but had the entire population been together, alternative pairings can be tried, immediately.
there's just too much stuffing around when you have numerous zoos involved. everyone has their own agenda and nothing gets done quick enough.