It's Not Ads Per Se....
Even though I finally succumbed and installed an ad blocker, it wasn't because I have any great resentment to being served ads by the likes of Facebook or Twitter, it's because 98% of what they served up was entirely pointless, of no interest, and a waste of both my and the advertisers' time and money.
Google, despite their faults, actually managed to push ads for stuff that I might want.
Do advertisers really not understand that they're paying large amounts of money to have their message delivered to people who don't give a rats' ass about their product?
Print media would never allow that - they sell a specific demographic to advertisers, and do it very well.
You would think that, given the volume of data collected, on-line publishers could do the same.