system
A chat on subreddit /r/NoStupidQuestions
human
It's a process. You can't unlearn it overnight. Just realize you have those reactions sometimes because that's what you were taught. You react that way automatically. Remember that you're now aware you were taught wrong. The more you're around people who aren't bigoted, the less likely you'll be to fall back on those old stereotypes.
gpt
There's this quote I heard a long time ago that's roughly "the first thought that pops into your head immediately is the thing you have been conditioned to think.  The second thought that pops into your head is what you actually think."