I mean, no. There is a huge history of slavery in Europe. Who do you think was involved in the Atlantic slave trade?

And it is not about sensitivity. It is a hateful word to use. You clearly knew there was an issue using it based on context, but you decided to do it anyhow. We could have got the same context by just saying, " you won’t name your dog a racial slur ike your grandpa did etc."

In the future, just don’t use it