Marketers are just doing what they can to make money at the expense of everyone's problematic psychological tendencies.

Taking your statement in its literal form, there's nothing wrong with marketing in itself. It's wildly successful in getting people to buy more and pay more for what they buy, which is the entire point of it. What's wrong is how marketing, unregulated capitalism and free corporate speech, and human psychology interact. But addressing those other things is difficult.

Yes, marketing is a problem and bullshit, but saying that won't change anything. The levers to change how marketing is done have nothing to do with marketing. They hit the third rails of free speech and free market capitalism, which mainstream culture is loathe to question.