I like an advertising monopoly: it means higher prices for less advertising (good) and more money for services to the actual population (good) and the high cos

I like an advertising monopoly: it means higher prices for less advertising (good) and more money for services to the actual population (good) and the high cost means ads I see are more likely to actually tailor to my interests (good). Why would we want a more "efficient" market for this? So we could pay a nano penny less for products we won't be buying anyway and in exchange Gmail, Facebook and every other free site becomes unusable as 98% of the screen is an ad? No Thanks.