We don’t get Star Trek post-scarcity by forcing everyone to do less, only by doing more. Creating more technology and creating (and consuming) more energy. Much more, near infinite amounts of it, that is what the replicator needs to create mass from energy.
I'm sorry but anyone who looks at Star Trek as a serious model for anything is at best naive. It's a space fantasy show whose Luxury Space Communism is little more than set dressing because it's a capitalist enterprise (pun intended come at me petaQs) made by capitalists for capitalist ends.
Likewise, expecting LLMs to serve anti-capitalist ends (eliminating the need for jobs among anyone but the capitalist class) when they are entirely controlled by capitalists is naive.
* according to the canon set by Gene Roddenberry. What actually plays out in the franchise is different, because human conflict makes for better entertainment.
Practically no one starves. The murder rate is down by crazy numbers. I'm not sure how much of a problem racism was at that time, but you wouldn't have had many chances to meet people from different haplogroups in any case.
The abundance created by industrial society is not distributed "evenly" or "fairly" but the baseline shift is insane.
What period of history would you want your children to be born into, with zero control over where or who they’d be born to? Just a random person on the earth on a date you choose, what would be your choice?