Let me address your three points in order:
1. There is a lot of free content - yeah, the internet is full of free content, but much of is click-bait garbage, or re-posted a billion times. Let's be honest - true, honest-to-goodness original journalism costs money. Good writing costs money. Investigating journalism costs money. Getting people to actually go out into the real world, and interview people, or write about stuff costs money. Who's going to pay for that?
Pick up an article from the New Statesman, or The Economist, or The New York Times - compare that to the offal you get on Buzzfeed, or one of the billion other click-bait sites.
When all those actual journalists go out of business - you'll get everybody coming out of the woodwork complaining that they can't get news, or it's all just PR puff-pieces from companies, or sound-bites from political spokespersons. And people on the internet will whine that is corrupt and only got elected because nobody could be bothered reporting on politics. Or that everything they read is beholden to corporate or political interests.
2. Your view is US centric - I'm not from the US, so I'm not really sure how to respond to this. Or are you just assuming, because you're not from the US, and it's convenient to erect a strawman?
Or are you saying there's poor people on the internet? Sure, I'm certain there are. In fact, there's poor people without access to access to computers, or the internet either. I suspect those people probably don't care (yet) to read articles from The Economist, or New Statesman either.
I'm specifically addressing people who access these sites, and still want to access them by blocking ads, or circumventing their anti-ad-block. So please don't erect some strawman, or turn this into a "Oh, but I'm poor! Please, give me free stuff!" plea. Poor people have do have problems and deserve compassion - but being able to get free articles from Forbes, or Wired probably isn't their main concern.
3. Cost of privacy is indirect - I see this as market forces. As in, if people don't want to do a normal "I pay a dollar, you give me a newspaper to read", then newspapers need to find other ways to monetise. I do have issues about that - but I certainly don't see either side as particularly clean in this fight.