I'm not fooled. But Microsoft has proven more benign in their post data mining usage, whereas Google is under the impression that the whole evolution of the species is culminated in their absolute RIGHT to serve you ads and that your PRIMARY function in the universe is to suck them up like a sponge. And they want to target, refine, retarget, refine, microtarget until they hone in and hit a nerve. They are relentless, shameless and implacable. I have never been hounded with advertising on a Windows Phone to the degree I am on Android and IMHO even if tales of targeting ads based on the email you just sent are "debunked" I still believe that (like every service from every company) they have bots crawling all over my personal content and IT IS KNOWN that Google's (and Alphabet's) primary revenue stream is advertising. Microsoft's is software and cloud services. Google makes software, yes. But their raison d'etre is serving ads.
Do I have Facebook? No. I'm not insane.
Google lead the charge. Facebook carriers the banner PROUDLY. Twitter is a heavy hitter. These companies are engaged in psyops against the populace in order to manipulate them to their own advantage. Call it tin foil hat conspiracy theory if you want, but I'm not in actual fear. I don't NOT use tech because of it. I'm far from being a luddite. I'm just careful about what baskets I choose to put my eggs in.