No option to sacrifice population

[Jiggly]

I have slavery civic and ive been playing for a while and still no option to sacrfice a population for production. Its there but greyed out.

 

[Vokarya]

No civic in AND has the "sacrifice population" option. I don't know when it was removed, but I believe it was because the AI was crippling itself using it.

 

[45°38'N-13°47'E]

Correct, it was removed years ago because AI didn't have a clue how to use it.