"There's too much dialogue and not enough sex and explosions", they would say, and they'd be right. And you shouldn't just tack them on, either; sex and explosions should flow out naturally as an indispensable part of the plot.

Bullshit. There's that part about rape having been legalized, and the canonical ending involves a planet being destroyed by a supernova. In a visual medium, the hypothetical discussion about exterminating baby-eaters would be voiceover for a montage of helpless crystalline civilians being hunted down by human infantry with power armor and personal laser cannons, culminating in an orbital bombardment.