I just can't relate to it at all. It isn't so much that I don't want to hear it exists as I don't know how to believe it exists. To me it sounds like a culture self inflicting damage. I've looked a little for something I really like in hip-hop, but can't find anything I really like. Radio hip-hop causes me discomfort. I don't like t-pain (how I wish for the death of auto-tune). I can't listen to lyrical music without listening to the lyrics and I can't relate to hip-hop. (Actually I really like Lupe Fiasco, don't always relate, but with him it's okay.)
Also, ob-la-di-ob-la-da isn't non-sensical in the same way 'my sharona' is. It's a non-sense phrase that gives weight to the light hearted music and simple message of "life goes on" leaving the listener to imply the 'just keep going's and 'life is good's.