I think he means "1780's" as opposed to "1970's" because that's the period the video focuses on. But clearly his contention is that the doctrine of Jihad and it's historical precedents had nothing to do with the actions of the Barbary Pirates.
A comment he left shortly afterward on a different video completely contradicts the above statement and completely validates my point about the dictates of Jihad being divine, eternal and irreversible:
So to summarize his argument, historical incidents of piracy committed by Muslims (and by extension individual terrorist acts in our own time) have NOTHING to do with Jihad or Islam... BUT... we should also note that Islam will dominate whether we like it or not because Allah ordained this outcome before the universe was even created. Got it!
In the first comment he takes the tack of post-modern writers/historians in "deconstructing" the Barbary Pirates as simple brigands who had nothing to do with any religion. In the second he falls back on his Islamic education and tells us what the really thinks. I appreciate his honesty.