Sounds like old fashioned southern SEGREGATION to me.
I’m from the intermountain area of the Rockies where everyone went to school together.
When my dad dragged us kids kicking and screaming to the Ozarks, the first thing we heard on the news was desegregation in Little Rock’s Central High!
I asked my dad,,”What is segregation?”
When he told me I could not comprehend it!
Then came Mississippi, Alabama, Ga. What had we gotten into! but then we lived in a section of the Ozarks where WE were the hated outsiders as everyone at our school was kin to everyone else in our school, except us, even though we were all the same race.
All male school is excellent. K-8 is not, however, necessary or particularly helpful. 9-12 is where the greatest value of one sex schools is made.
Racial segregation is an amazingly stupid idea. There is nothing to be gained by separating boys by race. The only outcome would be racial identification, increased ghettoization, cultural deprivation and a host of pathologies.
Enough with racial politics. We are one culture.