Look, I hate racism. With a passion. And I have no problem with black people. I don't say "my pals" outside of quotes on select occasions when necessary.
And most people on this board aren't really racist, either. They just enjoy getting a rise out of people, a pleasure you dole out every time you choose to be offended. It's a board, not real life. Get over it and you'll be surprised how quickly you'll forget to notice.
Arghoslent are a great band. Rich, evocative music with excellent riffwork and aggressive melody. Few bands can match up. Don't discount all their talent and hard work because you don't agree with their lyrical stance. I'm not saying what they're doing is right or wrong. That's subjective and irrelevant. Just don't say they don't matter. They do. They're making music. If you choose to ignore that as well, it's ultimately your loss.