Could you share a link to where he promotes race science?
https://slatestarcodex.com/2017/05/29/four-nobel-truths/
(How can anyone who has read slatestarcodex not know?)
It’s because the machine is their god. Service to the machine provides your value, and by extension your right to exist. If someone is no longer capable of the serving the machine, they are discard. What that looks like exactly is not pretty
Some people are inherently incapable of proving more value to the machine than they consume. What is to be done with these “extra” people?