Correct, at least in our own industry for keywords that we recognize. For the millions of other bottom feeding keywords, we would never find the sites and they would keep on living because the affiliate managers are not going to go searching for them. It would be a 24/7 job!
In other industries, there is adsense dollars to be gained, CJ, and a bunch of other stuff that will keep them alive. They will always try to traverse into our niche due to the aggressive marketing of affiliate programs.
I don’t see a way to stop any but the largest, most dominant of them.