There are two different kinds of racism:
Personal Racism- This can be anybody being racist towards anybody, much like the scenarios you mentioned.
Institutional Racism- This is the type of racism she was reffering to, and this is the racism that is done institutionally by whites towards people of color.
Personal racism can be hurtful if people are all sensative, but institutional racism is what really hurts people of color.
Yeah I realize that there are two different types of racism, but she didn't say that when she said “you need to have institutionalized power in order to actually be racist towards another group of people.”
The problem I have with all this is it seems we are coating the larger issue of class warfare with the more perceptible issue of racism.
Racism doesn't exist in the US on an institutional level. Sure in the specific day to day interactions the personal racism you talked about is still a reality. However when we are talking about institutional racism, we are really talking about institutional class warfare. Capitalism will inevitably create a society of have and have-nots that are at odds with one another over resources.
The deeper problem, based on evolutionary psychology, is it would be impossible for any other system to work because at our core we are inherently selfish. True altruism with the exception of inclusive fitness, could not have survived the evolutionary process that made us who we are today.
Humans aren't genetically racist, they are genetically selfish. This creates a tension between the people who have resources and the people who don't have resources. Those that have resources tend help each other based on the idea of reciprocal altruism.
In the US our classes tend to be segregated by racial lines, so it appears that on the surface that an institutionalized racism exists, but it is more the superimposing of personal racism between two individuals on the institutional class warfare between the have and have-nots due to the fact that in the US the haves are predominantly white.
In other words, a rich white dude only cares about himself and his family. He does favors for his rich friends so they in turn can one day do favors for him. He doesn't do favors for them because they are white; he does favors for them because they are rich and they happen to be white. If a rich African-American could potentially help him in the future, the rich white guy would be more than happy to help him in the present. Poor African-Americans are overlooked by the rich white guy not because they are African-American, but because they are poor, just as the rich white guy overlooks poor browns, whites, yellows etc.
The issue of racism is then raised because the rich guys are predominantly white and the non-whites happen to be predominately poor. When you look at that in general terms, it looks like white vs. non-whites, but you can see it’s really rich vs. poor.