Comments 1.  This is gonna take three comments - and even that is not enough.  But here goes

joanp - I grew up in the segregated South, when it was normal and reasonable for black skinned people to have no place to stay at local hotels, no restaurants to eat in but a few that would serve them out the backdoor, and could be arrested for drinking out of a whites-only drinking fountain even if there was no other drinking fountain available.  Black people did not work in same spaces that white people worked, unless it was in a job that was a service to the white person.  White people and people not white had separate schools and gues which schools were almost poorer in physical facilities, text books, libraries, and staff.  

Almost all these white people were good, Bible-Belt Christians and included most Catholics living there, too.  They believed that such segregation was Biblical, moral, right.  And miscegnation - oh my!