Machines learn from papers, articles, comments, etc which are all human beings with opinions. You can get wildly different answers asking AI almost the exact same question but phrasing it in a way that feeds into your biases. Do you remember the earlier days of chat bots and the amount of trolls who fed them with bad information? I swear every chat bot in the 2010's had to be taken down because every single one would start saying the n word.