Board Thread:The Last Sovereign Discussion/@comment-39332473-20190808194309/@comment-31763506-20191014005747

I think he's making an allusion to the fact that Lolth, the goddess of the Drow, encouraged something along the lines of xenocidal or omnicidal mania amongst her worshippers. The "happy" farm is, I think, a figure speech suggesting that Lolth cultivated that sort of dark elf like livestock.