Trickle-down and race are two mostly separate issues.
Trickle-down is similar to ETP in the sense that you start with a favored conclusion and then manufacture a rationalization for it. In ETP's case, the conclusion being doom despite low oil prices. For trickle-down, to simply justify greed along the lines of "I'm alright Jack, keep your hands off of my stack."
History has shown that capitalism, left to its own devices, makes the rich richer and the poor poorer to the point of eventual collapse (most likely violent). That is not to suggest communism would be better, but the sweet spot in the 20th century involved lots of sane corporate regulation and tax laws. Those went out the window during the Reagan administration. Nevertheless, even under his watch, Bell Telephone was broken up. Could we possibly see any sort of trust-busting like that again in the 21st century? Is Amazon, Apple, or Disney a little too big? What about Exxon??? Banks have been consolidating now for decades too. That probably played into the housing crisis.
Companies beyond a certain point wind up taking on the power of government, similar to how the church was a de facto government entity in the middle-ages. Too much worship is placed on captains of industry and not enough acknowledgment of the liabilities of power corrupting. The only corporations the right hates are high-tech and only because of the threat of censoring their propaganda.