If you’re into hard sci-fi and you’re looking for a good read, they actually dropped a pretty good recommendation with that reference at the end - Larry Niven does a great job of blending real-world theories like Dyson spheres and advanced propulsion drives, with some of the more far-flung standards of the genre like an intra-planetary teleportation grid.
I think there may have been a tragic misunderstanding… It looks like they were using X as a placeholder, rather than the noun that Elon wants it to be; but the sentence construction could have been clearer.
Something like “I think X is wrong, but I want it to be legal for me to do wrong things Y and Z” might be a bit closer to what they were going for.