MY family is from Wakayama, I've lived there for a significant portion of my life, and they are pests, I'd compare them to Coyotes in North America. They aren't cute and cuddly and they aren't native. They in part live off of human waste. I'd have a problem killing Coyotes because they are a native species, but this one is only there because of human interventions, and I don't think Zoo's are a fate much better than death. (and I'm sure the Taiwanese want more monkeys)