Anyway, back to the point...
Starting around 1967, or some evidence would suggest even 1965, Dr. King's message and overall demeanor began to change/gain a stronger sense of urgency. Dr. King's message began to shift away from a loving message of integration-to a stance against Institutionalized Racism. Dr. King began to call out the government for the hypocrisy of spending hundreds of millions of dollars toward wars to control other sovereign nations, and at the same time, loudly proclaiming the intention to fight harder for God-Given Rights. Dr. King railed against Racism practiced via Housing Discrimination, Employment discrimination, discrimination in Federal Funding and Grants, Violence against Non-Whites, and the overall lack of morality in the actions of Government & society.
“We have waited for more than three hundred and forty years for our constitutional and God-given rights. The nations of Asia and Africa are moving with jet-like speed toward gaining political independence, but we still creep at horse and buggy pace toward gaining a cup of coffee at a lunch counter.” Missing from the pages of history is the reality that many of his allies turned on him during those latter days of his life. He was no longer welcome in Lyndon B. Johnson's White House. Many spoke out against him. His change in focus, and willingness to criticize The Federal Government, put him on an island by himself. And much like Malcolm, it got him killed. Do note that on April 4th 1967 (EXACTLY ONE YEAR PRIOR TO HIS ASSASSINATION) Dr. King called the U.S. government "the greatest purveyor of violence in the world today." Most of those that walked with him prior to that time began to go into business for themselves, and Dr. King knew it. Once he was gone, they all got rich-and today they continue to bask in his light, while never doing anything more than SYMBOLIC acts that remain in the vein of a strategy that he had moved away from.
“We have waited for more than three hundred and forty years for our constitutional and God-given rights. The nations of Asia and Africa are moving with jet-like speed toward gaining political independence, but we still creep at horse and buggy pace toward gaining a cup of coffee at a lunch counter.”
In an encounter just days before the execution of Dr. King, Harry Belafonte Jr. described the demeanor of Brother mLK:
"I remember the last time we were together, at my home, shortly before he was murdered. He seemed quite agitated and preoccupied, and I asked him what the problem was. "I've come upon something that disturbs me deeply," he said. "We have fought hard and long for integration, as I believe we should have, and I know that we will win. But I've come to believe we're integrating into a burning house." That statement took me aback. It was the last thing I would have expected to hear, considering the nature of our struggle, and I asked him what he meant. "I'm afraid that America may be losing what moral vision she may have had," he answered. "And I'm afraid that even as we integrate, we are walking into a place that does not understand that this nation needs to be deeply concerned with the plight of the poor and disenfranchised. Until we commit ourselves to ensuring that the underclass is given justice and opportunity, we will continue to perpetuate the anger and violence that tears at the soul of this nation."
SOURCES:
https://legacy.scu.edu/ethics/architects-of-peace/Belafonte/essay.html
http://www.democracynow.org/2013/1/21/dr_martin_luther_king_in_1967
https://www.washingtonpost.com/opinions/five-myths-about-martin-luther-king/2016/01/15/4094b44a-ba62-11e5-829c-26ffb874a18d_story.html?tid=sm_fb
http://www.washingtonsblog.com/2015/01/martin-luther-king-assassinated-us-govt-king-family-civil-trial-verdict.html
http://www.thekingcenter.org/sites/default/files/KING%20FAMILY%20TRIAL%20TRANSCRIPT.pdf