Ask any of the zealots to provide evidence that even 1% of iMacs are faulty.
They cannot.
I ask them now show evidence that even a mere 1% of the new model iMacs are faulty.
Silence. Apart from the sound of them thinking "Duh, how can I possibly defend my non-stop assertions that ALL iMacs are faulty if I can't even show that 1% are no good? Woe is me!"
That's a bit of a funny proposition coming from a guy who returned his iMac twice due to defects.
On the flip side of that argument is where someone asks the other zealots to provide evidence that 99% of the new iMacs are not faulty. See what I'm getting at? Your argument is a bit of a stalemate. We'll just have to respectfully agree to disagree.