They didn't The whole point of Robber Baron was to consume the marketplace for a commodity like Tea or Steel or Cotton with control that allowed high profits through price-setting control. Robber Barons popped up in unlikely places- newspapers -Hearst; Steel -Carnegie, Mellon, Oil-Rockefeller (Standard Oil) and so on. They attracted competition infrequently, but those who sought to compete wanted a share of the baron's profits, and once established became baron's in their own right That was the competition they attracted; even in commerce today, the big guy's attract competition, Walmart attracts Target, Kohl's, Price Club and so on.
Best Buy attracts Gregg's; General Motors attracts...everybody The danger in being Number 1 (with a bullet) is that someone is always taking a "shot" at you. That's why Comcast fights so hard to keep competitive Content providers and Internet Service competitors from accessing it's network, as do others Unfortunately there are many different monopolies at work in U.S. Commerce today; some subtle, and some not so subtle Geographic monopolies, product and service monopolies, all exist today in some degree in Health, Education, even Government.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.