If you do, fair enough. I certainly don't.
Also. '"Racist" is not a fundamental, unchangeable attribute of a person' I would love to know the secret to changing someone's mind on this. I think the whole world would to be honest. If it were that easy, we wouldn't be having this conversation.
This guy seems to have a pretty good track record: https://en.m.wikipedia.org/wiki/Daryl_Davis
One thing that helps is just exposure to counterexamples of whatever bias a person has. If someone thinks that all of group A are lazy, show them hard-working members of group A.
Again, maybe you're trying to be forgiving when you say "we can't just deny people access to jobs and public life" but we absolutely can do that when they become a detriment to everybody else involved in those jobs and public life. It's sad but it's true. For people who are particularly detrimental to the point where they commit hate crimes, we send them to prison.
Sadly in USA circa 2021 many people have forgot elementary moral wisdom.
Matthew 7:1 Do not judge, or you too will be judged.
Matthew 7:2 For in the same way you judge others, you will be judged, and with the measure you use, it will be measured to you.
Matthew 7:3 "Why do you look at the speck of sawdust in your brother's eye and pay no attention to the plank in your own eye?
John 8:7 He that is without sin among you, let him first cast a stone at her.
Romans 12:17 Do not repay anyone evil for evil.