And this happens at the same energy whether the impetus is gravity, lasers, or Maxwell’s Demons.
That's nowhere near "ignition", which is being sought in the ICF experiments. I only recently learned of a type of supernova caused by "pair production instability" which does actually represent a star exploding like an H-bomb, with near 100% efficiency due to its size. Mind-boggling.
ICF is striving for a pinhead portion of one of these, not the slow simmering sun. In fact, reading the ICF article, it's hard not to scoff.