I think their post was libertarian satire.
Same with AI.
It's why China was able to eliminate extreme poverty while creating hundreds of billionaires.
You may think this inequality is unfair, but economics isn't concerned about inequality. Why? Because inequality doesn't matter. What only matters is poverty, and the elimination of it.
And I always find it hilarious that socialists can never say "I want to eliminate poverty"
Focus on the poor, not the rich.