I don't want to watch this video, but I agree that growing electricity consumption from the data centers would boost the electricity prices for everyone. The utility companies would make huge deals with big corporations because there's a profit for them, so the "below-cost" thing isn't true. The global economy needs way more energy, but 'green energy'(wind and solar) simply isn't enough. Perhaps many governments in the western world would change their policies on coal power plants and carbon credits. Nuclear energy should also be embraced.
Perhaps all the data centers would become way more energy efficient in the future.