The hole in his head stopped his progress on that issue...
As I understand it free blacks visited him and said they were born here and they were Americans too! (Anyway the attempt was tried earlier and privately and it failed - Liberia.)
Read Thomas Sowell’s works on these issues. All you’re doing is letting LBJ and his gaggle of Ivy League Leftist sociologists off the hook. They laid the foundation for the “welfare system” which laid the foundation for the current problems. Same bankrupt ideas are destroying total America and its predominantly white! I would argue the government had miniature version of the “welfare system” and its ability to destroy society in plain sight but chose to ignore it - the Indian Reservations! Welfare for black Americans was done for the reason that LBJ stated - “I’ll have those N-words voting Democrat for 100 years!”.
No, he changed his mind well before that.