A few examples (in approximately increasing order of controversy):
If you proceed anyway...
- Identify knowledge that may be dangerous. Forewarned is forearmed.
- Try to cut dangerous knowledge out of your decision network. Don’t let it influence other beliefs or your actions without your conscious awareness. You can’t succeed completely at this, but it might help.
- Deliberately lower dangerous priors, by acknowledging the possibility that your brain is contaminating your reasoning and then overcompensating, because you know that you’re still too overconfident.
- Spend a disproportionate amount of time seeking contradictory evidence. If believing something could have a great cost to your values, make a commensurately great effort to be right.
- Just don’t do it. It’s not worth it. And if I found out, I’d have to figure out where you live, track you down, and kill you.
The well documented discrimination against short men and ugly people and the (more debatable) discrimination against the socially inept and those whose behaviour and learning style does not conform to the compliant workers that schools are largely structured to produce are examples of discrimination that appears to receive less attention and concern.
Opposition to discrimination doesn't just happen. It has to be organized and promoted for an extended period before there's a effect.
Afaik, that promotion typically has to include convincing people in the discriminated group that things can be different and that opposing discrimination is worth the risks and effort. In some cases, it also includes convincing them that they don't deserve to be mistreated.