I can understand that... but if you actually listen to most of it, its not so much preacy as it is...relatable, and loving. A lot of it is good to listen to, because it deals with the same everyday stuff we all deal with. It helps bring hope.
But, there is a lot of Christian music that is aggresive with there beliefs, but they never condemn those who dont believe.
Take "Thousand foot krutch" for example. Yeah, they believe and Christ and they are aggresive about it, but not so much "In your face" aggresive just "we're here to help" aggresive. TFK is my favorite band, check them out... they're pretty sweet...but you dont have to, just a suggestion.