Rock is so not dead. Most people are just too lazy to look. You aren't gonna find music with any sort of character or integrity on the radio.
Also, a lot of bands are criticized for ripping off the rock legends, but what most biased, old school fans fail (or refuse) to aknowledge is, the old guys (The Rolling Stones, KISS, ACDC, etc.) got first dibs at the low hanging fruit as far as riffs are concerned. With the coming of guitar distortion, rock progressed in the most typical way you'd think it would.
Everyday it gets harder and harder to stand out because so many ideas and styles have been done to death. Still, there are a lot of great artists, in every genre from hip hop to metal, that have eclectic and unique sounds. You just have to be willing to look, which unfortunately means sifting through a landfill of shitty bands in an over saturated industry.
I'm a musician and I approve this message.
P.S. Fuck Gene Simmons in his irrelevant, aging cunt.