Whenever someone's words or behavior are called out as racist, a few predictable responses always follow. One is to see the word "racist" as a vicious personal attack. Two is to vehemently deny that whatever was said or done was racist. And three is to pull out the dictionary definition of racism to prove that the words or behavior weren't racist.
Honestly, as soon as someone refers to the dictionary when discussing racism, it's clear that person has never delved deeply into trying to understand racism. It's a big old red flag, every time.
I'm not an expert on race relations, but I've spent many years learning from people who are. And I've learned that the reality of racism is nuanced and complex, and resorting to a short dictionary definition completely ignores that fact. The dictionary can't include all of the ways racism manifests in individuals and society, and the limitations of dictionary definitions make it a poor tool for discussing the topic.
Since "racism" is such a loaded term for many people, let's look at such limitations through a different complex word. Let's take "anxiety." According to Merriam-Webster, "anxiety" is defined as "apprehensive uneasiness or nervousness, usually over an impending or anticipated ill."