I agree with your point. However,

'Retard' is a word that has historically been used to describe a person with an intellectual disability, but has entered language as offensive slag. Unfortunately using the word in this way carries the connotation that people with disabilities are stupid or flawed. People often don’t mean this when they use the word 'retard', but it still causes people pain and reinforces negative stereotypes.

I'm sure that this was the last thing on your mind, and I'm sorry for bringing it up. But I hope I've encouraged you to rethink how you use the word.

https://www.aruma.com.au/about-us/blog/two-words-you-need-to...