In 1948, President Harry S. Truman signed an executive order to desegregate the US military.
The same “arguments” used against that idea were later marshaled to attempt to keep women out of front line units, gay people out of the military, and so on.
Basically, social conservatives have never been right about anything ever, but that doesn’t slow them down any.
“I think every American has the right to wear this goofy-ass outfit.”
–Harry S. Truman
(Photo of Truman in uniform ca. 1918 via Wikipedia)