Bingo. Deanonymize the majority of users to the point where only privacy activists, power users, and grey/blackhatters are running adblockers, compile a comprehensive list of such users, and then either find another way to track them or straight up ban adblockers because "only the bad guys use them, what do you have to hide?"
Their concern about losing the ability to "personalize" ads smacks of NSA/GCHQ concern that they can't reliably track X percent of the population (UBO/pihole/etc users). Sure, Google makes a ton of money from ads, but with their stranglehold on the search, mobile, navigation, and video markets, do they really need to make such a controversial change just to squeeze a few extra million a year out of Ads?
No. There's plenty of other ways to make money for their business, there aren't many other ways to remain in good standing with and funded by the surveillance state. There's something else at play here.
This is compelling, but possibly too charitable to the ad tech industry. Google isn't a hapless vassal of the surveillance state. They make a fuckton of money off of your attention.
It's more or less just capitalism in the tech era.
Google became 'evil' as soon as it realised that exploiting user data was the route to profit. We live in the information age - any for-profit business is going to pursue that which makes it the most profit.
Since most people are used to the idea of online services being 'free' - they got used to the relationship imbalance, and few companies ever really inform their users about exactly how much value their usage produces.
The surveillance aspect is definitely real - but I suspect it emerged over time as Google was forced to work with law enforcement, security services etc as its reach and power grew.
This is not "surveillance capitalism". It is surveillance in guise of capitalism.