I'm not sure if I would describe it as "abstract or deep", so I'm sorry to disregard that part of your question - but I have found anything written by Khaled Hosseini (sp?) to be utterly devoid of merit or meaning.

The Kite Runner, in particular, is the perfect example of a redemption narrative where the redemption is both undeserved and unearned. The narrator is so thoroughly contemptible that it's impossible to find any worth in the story - my problem is not, by the way, with unlikeable narrators. In some cases, unlikeable narrators can make a story. The problem is that Hosseini so clearly expects us to take to the narrator, and to accept his redemption.

It's full of tinpot philosophising and Americanised musings on the Middle East* - and not to mention that career-destroying line where Amir meets an old acquaintance of his mother in Kabul(?), and draws all attention to this unlikely, but still acceptable, meeting by saying "LOL this might seem strange but this kinda shit just, like, HAPPENS in Kabul, ya feel?"

*I seem to remember reading a line from a review of this novel that goes something like this:

This is the kind of book that White America reads to feel guilty.

I cannot think of a better way to sum up Hosseini's entire career.