Thanks for embedding! Even though i disagree with his overall assessment (as previously stated using in-world theories), the humorous delivery makes the video worth watching.
No problem, and I agree. From either the pure fantasy debate standpoint, or a "tech way over our heads" ideology it's still arguable. Until you can stabilize and replicate that level of technology, saying "definitively" what would happen is speculative and theory. The current level of scientific and conceptual physics just isn't at hyperspace travel, kilometer spanning stable energy shield tech, or stand alone hand held plasma weaponry. So whatever leaps or gains would need to be made to make those things "practical" or achievable could be arguably radical enough to break current logic.
All that said, yep he's entertaining and well informed for sure anyway. He's done his research and presented his arguments well. In a format that makes them easy to digest. So it was a fun video to watch, glad the OP shared it. I just hoped to keep it circulating easily.