Between the Hirogen and the Borg, how could there be any intelligent life left in the Delta Quadrant? These two species hunt and destroy other intelligent life one by assimilation and the other by hunting them into extinction.
Hirogen should have run across the Borg centuries earlier because of their nomadic existence with the ability to cross thousand light years in 5 years. Once they meet the Borg, they would have met their greatest prey to hunt. Could you picture a small fleet of Hirogen starships hunting for lone Borg cubes like old whaling fleets hunting for whales.
What an odd question. Why assume that the Hirogen and the Borg may have wiped out all intelligent life? Isn't that view a bit extreme, giving too much credit to them?