The definition you quoted included discrimination which is another umbrella term like disproportionate effect. Why is it so hard to understand that racism is what racism does?
Discrimination is also another term that in ordinary usage requires intent to discriminate.
I don’t find the concept “hard to understand” I’m just talking about what commonly used words mean. “Racism” is a word that describes individual animosity. It’s confusing to try and overload it with other meanings.
Disagreed. Our laws about discrimination against protected groups do not care about intent, nor do I care about intent when I am talking about a piece of code that serves to discriminate between one chunk of data and another in some fashion. In fact, even when I talk about people who discriminate, I rarely care about their intention.
I find the dictionary definitions suitable. I believe you have been arguing in favor of the overloaded social (connotative) meaning on this thread. Color me impressed.
If you have to change the dictionary meaning of a word to make your argument work, it's your argument that is broken, not the dictionary.