Total advertising spend worldwide is $600 billion. Online is about 1/6 of that, call it $100 billion.
To a rough approximation, that's footed by the 1 billion wealthy inhabitants of the EU, US, Japan, Canada, Australian, and New Zealand. (I said rough, roll with me.)
That means that the per person costs of advertising are pretty much $100 annually online and $600 annually for all content (mostly TV). Keep in mind, those are real expenses expressed through household purchases.
(This means, by the way, that online content isn't free, you are paying for it, only, you're doing so indirectly, through advertisers.)
By contrast, total direct expenditures on print media run about $125/person in the US. (Audio/video may add to that.)
If you look at what is advertised, an awful lot is very high-ticket items. The FIRE industries (finance, insurance, real estate) were the largest chunk of spend as of a couple-three years ago. Electronics is another large segment.
The notion of some sort of universal content payments scheme, preferably indexed to wealth and income, has a great deal of economic justification. I've been exploring that for the past few years.
https://www.reddit.com/r/dredmorbius/search?q=universal+cont...
So, if I block advertising, I'm indirectly wasting the money these companies spend on me, and are paying more for products without any benefit? That's a funny thought.
You're also avoiding the inherent manipulation of advertising itself.
But yes, the dynamics are a tad bent.
I find it very disappointing and would like to see the ad industry die in a fire :-(