> That mobile doesn't have a way to block ads is probably a failure of Google, Apple and other players to allow extensions.
To be honest, I see this as short-term painful, long-term desirable. Ad blockers make the incentives of the web worse - they mean that publishers get punished for bad behaviour of other sites. Whereas without, users make more direct value judgements...if your site is covered in ads and a terrible experience, I'll stop visiting it. (I'd accept arguments that 100% ad blocker adoption could push us to a better place so we should let this run its course instead, but when I think it through I think it more likely pushes towards walled gardens and the death of the open web, so I'm skeptical.)
To your second point, I don't think that Google has the power you think it does to strong-arm other ad networks, and that'd be a really dangerous thing for Google to consider doing anyways. Publishers are often struggling right now (especially newspapers), and so revenue is their only thought. They'll go with whoever brings in the most money, because otherwise hastens the death of their company. This is why I like the AMP argument - it isn't forcing anyone, but it makes the argument that "if users can expect a good experience, you'll make more money, in spite of not being able to be as free with the technologies you jam onto the page". Yes, it's a weaker appeal, but that's what I like about it...because it has to be predicated on actually working better, rather than about pushing people around.