system
Given the following post, respond as if you're commenting on Reddit:
human
Why weren't historical characters in the holodeck racist?

It seems that when black characters like Worf, Geordi, and Guinan go to dates before the 1960's they don't experience any racism from the other holodeck characters.  

The holodeck characters seem to recognize their race and appearance, but don't seem to have any serious racial biases.
gpt
Holodeck's have always been created as places for leisure and training. Since it is unlikely that our crews would ever need to train for situations on a pre-warp earth, we created characters and personalities from that era with only leisure in mind. Being treated in a racist manner is not particularly enjoyable.