Does Anyone Know of Political Activist Leaders that Speak Like Later Years of MLK Jr. about Evils of Capitalism, Freedom & Etc., No Matter which Party It Comes from, But Without Religion of Any Kind?

This morning I watched ‘Free Speech’s ‘Democracy Now’s The MLK Jr. episode (every MLK Jr. holiday, they have a MLK Jr. special episode) with his speeches, it was awesome, but at the end I was thinking to myself are there any Atheist Political Activist Leaders that Speak Like Later Years of MLK Jr. about Evils of Capitalism, Freedom & Etc., no matter which party it comes from. I have yet to found at least one, in all political Left-political Far Left media I experience, over 2-decades. Then I was like I will just have ask you all here.
I know that MLK Jr. has been one of THE GOATs, if not THE GOAT, when it comes to public speaking. The only Political Activist Leader person I can think of that talks about Evils of Capitalism (leads ‘The Poor Peoples’ Campaign’), Freedom & Etc., no matter which party it comes from & comes close to being as good as MLK Jr. is Rev. Dr. William J. Barber II.. The problem with Rev. Dr. William J. Barber II is he obviously inserts a lot of religion into his activism.

Does Anyone Know of Any Atheist Political Activist Leaders that Speak Like Later Years of MLK Jr. about Evils of Capitalism, Freedom & Etc., But Without Religion of Any Kind?