As I think I implied above I’m in a kind of neutral position with Facebook. I have no issues at all with a capitalist motive, I think they have as much right to monetise their platform as you have to sell your knowledge and experience as an electronics specialist, university lecturer or whatever. I
My issue, like I suspect yours, is with political data-mining. I never want to be fielded an advert/propaganda from Brexit “Party”, Britain First,or for that matter Another Angry Voice,
I'm also OK with some forms of 'capitalism'. Which for me means both a genuinely competitive arrangement and open scrutiny of who is doing what, and what isn't allowable, etc. The problem is that 'capitalism' varies. The obvious example is monopoly/cartel 'capitalism'. Which gets regulated for obvious reasons.
The snag (as per the Paul Mason books I've mentioned a lot recently) is that the basis of 'capitalism' has actually morphed during the last few decades, and 'information' is a key aspect of that change. Which isn't regulated because we and the politicians didn't all see it coming. It now requires regulation just as manufacturing or sectors like oil production did to avoid situations like monoply or 'trusts' or cartels.
Take an earlier example. What happened when Kodak ended. The assets - mainly IPR - were highly valued. But a number of big US corporations did what Antiques dealers in the UK 'ringed' it. They all sat in a room and decided to bid low and not big against each other, then divvy up the spoils between them later on. Thus the creditors, etc, of Kodak got shafted. At the time this was legal in the USA, but I suspect it isn't now.
In effect, companies like FarceBook are international quasi-monopolies. We work for them by giving them our information. They have also evaded the responsibility normally applied for publishers. This really has to change for all our sakes.
Modern 'capitalism' is now largely based on information, not production of goods.
FWIW Once I became a lecturer and was 'paid by the people' I decided to do more than lecture. So started the 'Scots Guide to Electronics' to *give away* what information I could. Since then a large part of what I've written either goes onto the web or went into a magazine that was for 'enthusiasts' and didn't pay me. However, yes, if a magazine was published for profit, I expect to get paid... and then use the fact that I was OK financially to write more for free.
Its one reason I don't use FarceBook, etc. I object to them operating a walled garden using my info as bait. But prefer anyone interested to get it *without* my finding out who they are and what shoe size they take - or helping FarceBook to know.