Because you're assuming it's all a bit natural coincidence, and also, if you think people have different brains from eachother whilst being part of the same species, then your theory needs correcting, that's not how science works.

Moreover, it is precisely in such a circumstance that indoctrination works best. When you think you're exempt from it, then you're actually its most culpable subject.

But take a moment to observe precisely what media is. Every word is deliberately written, every company is carefully structured, every network, outlet, broadcaster and syndication is carefully engineered.

None of this could happen by some blind intuition, it took careful invention and management. Even as we speak there are millions of researchers and data engineers tirelessly working out new ways of manipulating you.

Just go to any university you like, Stanford, Oxford, Cambridge, Yale, whichever one, and you'll find several research departments dedicated to public relations, marketing, data processing, telemetry, all manner of things, all designed to get people like us to believe in things that are counterproductive to our personal interests.

The mere fact that you're saying people are trying to pour stuff in as it were, doesn't that seem strange? It assumes passivity. I don't own a television, or a radio, and I never watch the news beyond summaries of current events.

And the reason why is because I don't think you should be passive to these influences, if I want information, then I will find it, it won't find me. I look at libraries, or documentaries, or academic lectures, things that are part of archived content which I have to seek out myself.

This is because I'm aware of how I am no exception, how my brain is no different from yours, or anyone else's, and how whatever choices presented to me are false ones, just a tunnel vision. There's millions of ideas out there, and you shouldn't settle for the ones that only seem good by comparison to terrible ideas, that's how they get you.

And this whole system is certainly a modern invention of neoliberalism. Ideas should not be a marketplace, they are infinitely produced, and the only way to turn them into a commodity is through censorship and editorialism.

There is a very good book about how media and influence of public opinion works called "Inventing Reality" by a Yale professor called Michael Parenti. Here's a link if you're interested:

https://es1lib.org/book/3525906/3999bb

(Also even if the page is in Spanish, the book is in English. It just does that automatically for me when I get on the site.)