Why would the word “nigga” be offensive if a White person says it to a Black person with no ill intent. It’s 2021, the word nigga is used by almost everyone as a slang term for “dude” or “bro”.
Like others have mentioned, context and the intent behind words are very important. We need to stop referring back to slavery and events in the past to justify treating White people like they’re so different from everyone. At the end of the day, we’re all human.