Possibly because they are everyone's favourite bat-shit insane church, the home of "God Hates Fags", the Westboro Baptist Church.
If you haven't already heard of them, the wikipedia link should give you some impression of their beliefs.
Or you could just watch their catchy rendition of their version of "We are the world" - titled "God hates the world". I still find it hard to believe that this isn't some kind of extreme Chaser style prank but it seems like these people are for real.
By the way, if you find yourself nodding your head or thinking "hey, these guys are on to something", you probably haven't read anything else on this blog (or, for that matter, in the bible)