Because true Apple haters are idiots. They do not know what they are talking about and they believe that they are technical/gadget/computing enthusiasts, but they irrationally hate Apple for reasons that they can not quite explain without spouting urban legends that they have heard.
I am a tech enthusiast because i use all platforms and I know about them all. iPhone 4S is probably the best phone (despite the fact that my phone is a Samsung GS2, which is pretty awesome as well), I love my iPad, my Macs, my Windows systems, and my Linux systems.
The people with illogical hate for Apple are morons.
Let me fix this for you
The people with illogical hate for any company are morons.
You can see in this thread that there are people with illogical hate for Google/Android just like there are people with illogical hate for Apple/iOS.
Both extremes are counter productive to having a rational and intelligent discussion.