All Asians do not look alike either, not even close, OMG.... where have you BEEN?????
Of course they don't, but they do to many people not raised in that group. Likewise there are Asians who have a difficult time telling white people's faces apart. Within a culture you learn to recognize different sets of traits from early childhood - to distinquish one person from another.
Actually, you are only partially accurate.
Unlike black and asian, the white race has a mulitude of natural hair colors.
How many natural blond african americans do you know?
How many blond asians do you know?
How many naturally red headed asians do you know?
It is what it is. Nothing wrong with it. It is simply the way it is. However, in an effort to be racially sensitive, we do not articulate it....but it is what it is.