They know. There’s nothing they can do about it. Even as someone who wants to protect their own privacy it’s impossible without being in a cave or updating your habits every week. Use Linux and duck duck go and don’t use any social media and don’t have a phone and only buy 15 year old TVs and late model cars, don’t use credit cards.
Blaming internet users for not protecting their privacy indicates that one has no idea how anything works, or they make their money off of ads.