On the other hand, it's now easier than ever to avoid all marketing in media. In the analog world you couldn't install an adblocker to your newspaper, or purchase a tv subscription without ads, or choose a radio station without ads in between. Now it's all available, and at least my world is almost completely advertisement-free -- except for those paid reviews you mentioned.

Heh, I think you're fooling yourself when you say 'all' marketing. The ads now are gamed customer reviews and paid comments.

what about product placement, PR in print media, "native" or content ads. to say nothing of social media "influencers"

I wouldn't follow an influencer, though I'm not very representative obviously. I'm quite OK with product placement. Content ads require that they are marked as advertisements, and can then be blocked.

Another example is when discussion forum “comments” have a link to an article, but actually the “commenter” links to an advertising company’s rehosting of the article.