I don't think anyone would ever say that by and large, Asian girls, especially Korean, Japanese and Chinese girls, are not sexy.

They are head and tails above the majority of other girls. 

Yes there are lovely Swedes, and gorgeous Italians, and beautiful Israelis and cute Californians.  However Asian girls almost always beat them in my opinion.

Why?

1. Overall body type.  Asian girls are petite and not manly like many American or Russian or Polish or others.  They have sweet little bodies that are compact and so utterly adorable.
2. Their faces have almond eyes, tiny noses and look eternally young. (Up to a point of course--everyone gets old sometime.)
   
3. They have childlike attitudes. They love to laugh they love to smile and they love to be happy for almost no reason at all. That is a powerful sexy talent to have.

Asians are...dare I say...perfect?