Dude, reddit is more of a racist shit stain than 4chan. I don't condone any actual racism (Honestly, I think it's a rather weird concept to get upset over skin color),
but if you truly dislike 4chan for saying racial slurs and other meaningless insults, you really need to just get off the internet in general because it's everywhere. Do people actually mean when they call another poster on 4chan a "faggot" or a "nigger"? No, they do it as a joke. It is part of their culture, and yeah it's odd, but that's how it is.
It's just words, and it depends on the way the person is saying them. /pol/ is an absolute racist shit stain on 4chan, it is by far the worst board (though they produced some funny stuff once in a while). Don't group them up with everyone else. It's just tiring to see 4chan still be a "boogeyman" on the internet.
For the record, I only go to /v/ and /ic/.