Reaching for a questionable quote that someone put in his book, 30 years after supposed incident, without any other verifiable source is a make a wish come true for some.

But one quote of LBJ's that is verifiable is what did happen, when he put down his pen after signing the Civil Rights Act of 1964 into law, Johnson said to an aide "We have lost the South for a generation". 

He was a bit off, time wise. That will probably take, your 200 years.