I'm guilty of it. Grown a lot over the years, but still catch myself sometimes. I get frustrated with myself.
Grew up in the deep south - had "black friends" and was never overtly racist. My parents genuinely would have beat my ass if I said anything close to that. They were good people, but we were still a product of being middle class, suburban people living in a predominantly white neighborhood.
I learned about MLK, Malcom X, Rosa Parks, etc. My mom always spoke highly of Rosa Parks especially for some reason (probably because she was local). My mom is gone now, but I think she would have been far more progressive if she were alive today and I had been able to have discussions with her. I miss that.
Since then though I've moved up to the North and realized how the underpinnings of our society and just total lack of awareness were, in many ways, racist. Robert E. Lee was hailed as a cool dude who made some mistakes, but was a good leader. Racism was bad, but it ended and now we're cool for the most part! Confederate flags were around, but they were just cultural. And meanwhile black people generally lived in worse parts of town, but I was told/assumed it was because they didn't work as hard!
And really, I was just never in a place where I saw bad stuff or racist stuff happen. I was insulated and assumed that was the way the world works. Once my friends and I were goofing off a bit late at a Wal-Mart right after we turned 16. A police officer made us come talk to her because there were reports of vandalism. I was polite, gave her my parents number, said she's happy to call them if she was proof it was us and she said thanks and left us. Other friends of mine's dads were police officers and FBI agents - they were very kind and friendly. One of my friend's dad was a police officer and died on Christmas eve trying to help someone change their tire when another car hit them and killed him.
This was the context of my world. Authority figures were friendly and helpful. Police and run-ins could be solved by being polite and just showing respect. Show respect and get respect. If something were to ever go wrong, I'd call my friends dad or have my parents talk to the police and everything would surely get sorted out. Unless I did something horrible that deserved to be in trouble, nothing bad would happen.
I know the world doesn't work this way for everyone now. But it's actually a weird cognitive effort for me. Youtube and videos have helped more than anything because I genuinely feel like it's a different world than I had growing up. But really, it was always there I just was too privileged to see it or be aware of it.
But if you'd told me as a youth that I was privileged, I would have denied. My fairly well off family legitimately struggled sometimes. My dad got laid off and for over a year worked two retail jobs to keep us afloat. I remember we only went out to eat 4 times that year and it was for big events and all we could afford was McDonalds or Burger king. Privileged? My family worked hard. But I didn't understand that that's not the whole picture.
For what it's worth, I'm sorry for all the ways my silence and lack of awareness contributed to the problem. I try to do better. I still suck at it sometimes, but I try to speak up, vote, and get involved in a number of different ways. But I really am sorry for the ways that our society and people like me have perpetuated the problem.