as a person that works for a healthcare startup that relies on facebook ads, while I agree with how much it sucks as a consumer, as a business offering there is nothing like it.

There is no add network that reaches more people, and gets more clicks, than the facebook add network. We felt it hard when Apple mucked with them, as well did a lot of other startups. So while I understand the "privacy risks", I think it's equally foolhardy to ignore the positive impact it has for many businesses. It accounts for more than 1/2 of total revenue, for sure. If it went away, something would fill it's shoes for us eventually, and quite frankly I don't think that replacement would be any better for humanity.