Thanks for confirming. Red flags were going off quite a bit while reading this. For one, that doesn't sound like something he'd say in that way. For two, it's written like a modern internet writer, not like the speech of one of the best orators of his generation, possibly all generations in modern history.

https://www.everythingsociology.com/2018/04/martin-luther-king-jr-on-capitalism-policies-and-racism.html