We downplay the impact systems have on human behavior. Let's look at the claim that people have a need to buy oil, and that oil companies merely meet demand.
In America, most people cannot buy groceries without having access to a car. Car ownership is not required de jure, but it required de facto because of a lack of alternatives. America used to have transportation choice. Anywhere where there was transportation diversity, car, tire, oil companies bought out public transit and shut down the operations. On April 1974, San Francisco mayor and antitrust attorney Joseph Alioto testified that "General Motors and the automobile industry generally exhibit a kind of monopoly evil", adding that GM "has carried on a deliberate concerted action with the oil companies and tire companies...for the purpose of destroying a vital form of competition; namely, electric rapid transit [0].
Oil (and other) companies stimulate demand for their products. When consequences occur, the modus operandi of corporations is to shift blame to their customers. The concept of personal carbon footprints are the result of a PR campaign by British Petroleum [1].
I think the reason 100 companies is a meme is because it resonates. It feels right, but the counter arguments are convenient, easy. It resonates because it hints at phenomena that we can't see directly, but have tremendous influence on our lives.
[0] https://en.wikipedia.org/wiki/General_Motors_streetcar_consp...
[1] https://www.theguardian.com/commentisfree/2021/aug/23/big-oi...