It's more than a stretch to say people using slurs are racist. These are symptoms of a hypersensitive culture that rewards pseudo-virtuous people who publicly call out "racism".

I grew up with a diverse group of friends, we used every slur under the sun to shit talk eachother and still do when being idiots. Those slurs have no meaning to us beyond the comedic value they provide in their vulgarity. I'd be shocked to discover any of us were racist, pretty strange to have not noticed after >20 years.