With all the ad profiling and targeting going on, is it really a coincidence that certain ads appear next to somewhat extreme content? Maybe some brands and ext

With all the ad profiling and targeting going on, is it really a coincidence that certain ads appear next to somewhat extreme content? Maybe some brands and extremist groups do share the same audience? That fact can be hard to swallow for the marketing department of a company: 'Apparently 80 percent of our customers are white supremacists or hate gays.' Or something like: 'It seems that 1 in 3 of our shampoo buyers like beheading videos.' Consequently those companies pulling advertising on Google and YouTube should stop selling their products and services to extremist or similar inappropriate customers. Or put a disclaimer on their products or in their TOS: 'This product can not be sold to, or used by, viewers of beheading videos, Muslim extremists, Paul Ryan voters or Breitbart readers.'