Haha really?
Of course that track is beyond shit. I fucking loathe it but it sounds like you guys know each other quite well. Do you actually hold someone's musical preference against them? I can understand not wanting to hear it blasting out in a friend's car whilst you're riding with them, but other than that, each to their own I reckon.
It's nice to find like-minded individuals on here and the majority of us will probably gravitate to hating rap purely because of the lack of music, the vile lyrics and the whole vulgarity of it all but I couldn't care less if a friend of mine liked rap. Of course we probably wouldn't have that much in common to begin with though since I tend to mainly hang around with musicians.
If he liked touching kids or punching puppies, well that's a different matter, but a slight over-reaction? lol.