system
Given the following post, respond as if you're commenting on Reddit:
human
[Dune] So, the entire House Atreides apparently consists of Leto Atreides, his concubine, Jessica, and his one son, Paul, without any sort of extended family. How did the House come to this? Shouldn't this be of great concern to Leto?

At this point, Paul is the only Atreides keeping the entire house from extinction.
gpt
You have to remember the importance of breeding in the Dune universe. The Atreides not in charge of managing their own bloodline.

The witches of the Bene Geserit have been arranging and manipulating the bloodlines of the great houses to their ends for hundreds of generations. These plans came crashing down when Lady Jessica bore a son instead of a daughter, as she was instructed to do by her superiors. Multiple children could dilute the genes the Bene Geserit were cultivating through the Atreides and Harkonen bloodlines.