Re: Just ban tracking/targeting
if the products were indeed as good as advertised, advertisement wouldn't be necessary in the first place
This is simply naïve. Maybe you belong to some cabal of product users who can evaluate all new products for merit and circulate a list of the best available, but here in the real world, there is no magical access to some merit-ranked list of what's for sale.
In 2013, over 275,000 books were published in the US. I can't keep track of that many new publications. I can't even keep track of publications by all of the authors I like — I probably could, if I spent a fair bit of time creating a system for that, but I have better things to do.
Thanks to Kindle advertisements, over the past few years I've discovered a number of authors whose books now rank among my favorites. There's no plausible way I would have found all of these otherwise. Yes, some other new-favorite authors I found in traditional bricks-and-mortar bookstores, for which I am eternally grateful; but bookstores can't carry everything, and when I browse in a bookstore (or library) I can't look at more than a small fraction of what they have available.
Some of the websites I enjoy, I learned about through advertisements on other sites. Again, it's unlikely I'd have been introduced to them in any other way.
I don't watch a lot of synchronous media, but I do occasionally watch something on YouTube. A couple of the creators I watch routinely were recommended by friends; a couple I knew of from other sources. Most are the results of YouTube recommendations occasionally getting it right. I have no idea what input vector resulted in YouTube's popping up a link to CPG Grey's history-of-Tiffany video a couple of years ago, but it did, and the result was a decent chunk of entertainment (across Grey's body of work) that I was also able to share with Granddaughter Major. Advertising FTW.
It's a whole wide world out there, and due to sheer volume it's not particularly discoverable. Maybe you don't like advertising, full stop; fine, that's your opinion. But to claim that consumers would find everything they might value without it is sophomoric rubbish.