I first became aware of racist terms and phrases imbedded in the language when I used one without realizing it in 1969. From that point forward, I’ve looked for such blatant terms.
However, the terms here have evolved to mean something different from their original usage. I imagine there are hundreds of other such terms not yet identified. Some new ones have even come into being during my lifetime.
History is nice to know, but I won’t worry about such words unless they have retained their original meaning as one of the options in the dictionary.
People can get offended by anything and everything. If you say anything, you will offend somebody.