From libertarian Michael A. LaFerrara:
Remembering Martin Luther King Jr. For His Moral Ideals Rather Than His Politics
Yet, King’s Dream was to be corrupted by an inner contradiction. In his later years, King questioned the legitimacy of capitalism and turned to what he termed “democratic socialism,” a hybrid of two evil systems (democracy and socialism) that repudiates the very ideals he espoused in his speech. Therein lies one of the great American paradoxes—the clash between King the moral force and King the political revolutionary.
When the Founders drafted the Declaration of Independence, they laid down the radical principles that would give birth to capitalism. These 55 brilliant words—the opening lines of the second paragraph of the Declaration—sum up the essence of capitalism:
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.–That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed. . .
When King reaffirmed those ideals—that all men are created equal, possessing inalienable rights to life, liberty, and the pursuit of happiness protected equally and at all times under a government of objective law rather than of men—he was really, though apparently unwittingly, affirming the foundational principles of capitalism.