Actually it can very well be. The only Down's persons we tend to see are the high function ones who can be trotted out for people "ou'n'aw" over. You know be a greeter at Wally-world, clean toilets, or dig ditches. How many persons with Down's have you met? I've met two I can clearly recall. Of that stupidly small sample 50% were completely and totally incapable of caring for themselfs. And would have been better off aborted.
Actually it is people with views like that who form their opinions from meeting two people who might be better off aborted .