Exactly. Saudi Aramco is wrecking the environment because (among others) Dow Chemical keeps buying their oil. Dow Chemical keeps buying their oil because Sterilite keeps buying the plastic that Dow makes. Sterilite keeps buying Dow’s plastic because people keep buying Sterilite bins to store all their junk. Ultimately if there wasn’t a person consuming things at the end of the chain, the oil wouldn’t be removed from the ground in the first place.
Ultimately it all comes down to people’s lifestyles. When you buy something that’s made of plastic or transported on a container ship, you’re giving these companies money they use to wreck the environment. If instead of kiwi fruit, you buy melons from an Amish farmer who brought them to market using a horse-drawn carriage, that lifestyle choice has an impact on the environment.
Having said that, it’s true that companies use lobbying to twist laws in their favour, and use sales and marketing to drive demand for their products. It’s hard to know whether a product you’re buying is damaging to the environment because the companies that damage the environment don’t want you to know and will oppose any law that makes it clearer. It’s hard to choose to purchase a less environmentally destructive item if you don’t know it exists.
But, it’s just ridiculous bullshit to pretend that nefarious companies are out there burning coal just for fun, while cackling evilly. Everything companies do is in service to making money, and virtually the only way they make money is to sell things that people want to buy.