My understanding is that the owners of some of the biggest illegal tubes are Americans or Canadians, citizens of countries where copyright law is supposed to be enforced. As are the hosts. That's just hearsay, so correct me if I'm wrong, but this doesn't smell like a product of Nigeria.

Then your seo strategy is better than theirs.

Illegal full-length content isn't the end-all be-all of rankings and traffic, it's just a large competitive advantage.

Compare it to professional sports:

site concept = innate talent
business plan = technique
working hard = training hard
moment of entry = starting age
stolen content = doping

Doping gives a major edge, but if the other factors are missing it won't be enough. Without talent, training and technique you'll probably never become a world-class athlete. Likewise, without a good concept, a good business plan and hard work, you'll probably never develop a successful site.

However, just like illegal doping, stolen content can put you ahead of the competition if you get the other stuff right as well.