Oh, I am now beginning to understand how "systemic" racism differs from plain "racism."
Plain "racism" is, for example, refusing to serve ethnicity X in a restaurant.
While "systemic racism" was illustrated in one of the posts above: When polluters want to build a plant, they choose a place that is populated mostly by ethnicity X. The polluters feel that ethnicity X has no political clout to stop them.
Now here's an example that is iffy.
Sometimes people from ethnicity X say that their health is not so good as others because their areas are ignored by big chains, such as drug stores stocked with a wide variety of OTC medicines or supermarkets that are stocked with healthful fruits & vegetables.
Those chain stores, in their defense, admit that they avoid certain areas because if they locate there, they will encounter big problems with shoplifting. Not to mention break-ins that result in a huge amount of stolen merchandise.
The most controversial kind of "systemic racism" concerns crime suspects.
It IS true that the cops will often immediately suspect someone from ethnicity X when it comes to certain crimes. They do so because past experience has shown them that the overwhelming number of perps of certain crimes are of ethnicity X, not of ethnicity A or B or C. I do not know whether this could be classified as "systemic" or just plain "racism" (that is, stereotypes).
I do know one thing, however: In the coming decades, even when the country is predominately Latinx and African American, some people of ethnicity X will still feel that they are victims of "systemic racism" or just plain "racism."