I thought of another interesting example of that "Skin color is X" example of racism. I found interesting.

If a person says "Jews are X" that is racist. Yet it is important to remember that X can be both positive or negative. If X is something like "awesome" so it is Jews are Awesome then people usually won't call them out on it.

Yet it is still a generalization. It is highly probable there are some Jews that are not particularly awesome. Example: George Soros. So it is false.

However, if X was "bad" so the statement becomes "Jews are bad" then not only is it still racist. It is also often called anti-Semitic.

The key to racism is the generalization, and involves some form of special treatment.

For there to not be racism then our reaction to people should be equal regardless of skin color.