I don't think they'd be confused at all: they'd simply think that very small percentage of the population was defective.
Just like you'd think if you observed some animal species where 99.99% of them mated and reproduced and 0.01% mutilated themselves and didn't. "Oh that's not right; I wonder what's wrong with them".
Or those beetles where the males would become so attracted to glass bottles they'd stop mating with the female beetles. No one said "well that's their choice I guess"; they said "oh shit we have a disaster on our hands: we need to redesign those bottles".
Yet humans observed animal species where 99.99% of them mated and reproduced and 0.01% humped an animal of the same sex, and concluded that they are beautiful examples of homosexuality being natural and something we should be proud of. I hope the aliens are smarter than us.
I don't think they'd be confused at all: they'd simply think that very small percentage of the population was defective.
Just like you'd think if you observed some animal species where 99.99% of them mated and reproduced and 0.01% mutilated themselves and didn't. "Oh that's not right; I wonder what's wrong with them".
Or those beetles where the males would become so attracted to glass bottles they'd stop mating with the female beetles. No one said "well that's their choice I guess"; they said "oh shit we have a disaster on our hands: we need to redesign those bottles".
Yet humans observed animal species where 99.99% of them mated and reproduced and 0.01% humped an animal of the same sex, and concluded that they are beautiful examples of homosexuality being natural and something we should be proud of. I hope the aliens are smarter than us.