It’s not back-and-forth lewd banter.
And if it had been bro culture, it would still need to be addressed.
But this wasn’t back-and-forth banter, it was deliberate, targeted, and a threat.
(As for the KKK remark… You can be a racist and not belong to the KKK.)
I’m astounded that anyone from our military forces (as simba9 says he is/was)
would make excuses for racists,
or that it isn’t obvious to all that racism isn’t acceptable, for cadets, officers,
or anyone decent and honorable.