Duke Nukem Forever.. Why all the hate??

I really don't understand all the bad reviews for this game. I mean, I haven't played the full game yet, I just tried the demo that was released on Tuesday, but, I have to say, it's really making me want to pick up the full game.
Granted, I've grown up playing Duke and totally understand why some people who have never played before would find this not as great.
It no reality shooter... its just pure fun.
The demo made me laugh so much and reminded me of the old school Duke and how much fun I had playing that.
Anyway, everyone out there, give Nukem a chance or he'll "...Rip off your head and shit down your neck!"......... COME GET SOME!