ads != doubleclick.
There are ways for sites to include advertising without surrendering their site to third-party-hosted malware. Many ways which aren't even blocked by adblockers by default. It's a bit more work for them than just using doubleclick/etc, but it's worth it.
So you're really saying that all the stupid/lazy sites will die off or retire behind paywalls. Surely that's "mission fucking accomplished."
(I'm constantly amazed that newspaper and TV-network sites mindless use doubleclick/etc for their websites, even though they have large advertising/marketing departments for their non-web products. You are already paying for an ad department! You already have a network of advertisers! You already have their actual ad-content on file! Why are you giving money to another company to do what you already do yourself and have done for over half a century?)