[The Urban Sombrero]

That could have been because he was never around the Viet Cong.

Vietnam has a history of racism. Most was toward the Chinese, but their word for black people was "burnt". Their word for white people was "uncooked".

Racism is within human nature. True enough.

Ali would have had light duty, just like Elvis. Thus, calling him a coward, in my view, does not apply.

Ali was a conscientious objector, in the same way many Quakers were.