Yeah, it's a way different issue in big cities. I grew up living in the woods in northern minnesota. Out there I really believed race didn't really matter anymore. The people I knew who were black or native american really didn't seem to lead any different of a life from what I did. But then I moved to DC for college and ended up running a program that tutored kids who were on probation... And, man did that change my perspective on race in the US... The biggest issue is economic, not racism. There are whole huge communities, especially in cities, that are just completely impoverished. Places where the cycle of poverty is running so strong that it is almost impossible to pull yourself out of it. And, unfortunately, that mostly falls on racial lines. Partly that is because of racism. Even today if a black person and a white person apply for the same job with the same resume, the white person is two and a half times more likely to get the job, and that has a massive impact in keeping black people poor. But, also there are historical reasons. It can take many generations to pull a family tree out of poverty and there are still many people working today who were not allowed to go to decent schools when they were kids because of jim crow laws. Poverty isn't really just a matter of how much income you have at a given point in time. It comes with a whole series of other problems that reinforce it over the generations. Somebody born into poverty is a lot less likely to have gotten the nutrition they need to develop properly, they're far more likely to be a victim of crime, they're far more likely to get sucked into the drug trade when that's the only thing hiring in their neighborhood, the schools in those areas are just flat out pathetic, a parent who can't read is not going to be able to provide the same kind of support to their kids when they're in school as one who can read, there is a lack of hope, nobody wants to open a business in an impoverished neighborhood, etc, etc. The poorer a community is, the more factors there are trying to push them down further into poverty. At the same time, cities also have huge pockets of some of the most wealthy people in the country, and those areas tend to be mostly white and asian. So you really have a pretty stark divide in the cities that I don't see so much in smaller towns.
Growing up in MN I mostly thought of racism as being like a conscious attitude of hatred. After my experiences in DC I realized that it's a lot more complex than that. It is a whole network of negative assumptions people make about races yes, but probably more importantly it is economic and structural and historical inequality. Where I used to think defeating racism was mostly about people not really thinking about race so much, I came to believe that it is about actively taking steps to level out the playing field and create more opportunities for some communities that have all but given up hope.