Billy Corgan's thoughts on Rock/Pop.
http://www.stereogum.com/1783648/billy-corgan-finally-breaks-his-legendary-silence-about-kanyes-grammys-intrusion/news/I think Kurt had an incredible level of integrity and I often say that he would know what to do with the pop miasma we’re dealing with right now. Because rock needs to be free and independent; it doesn’t need to imitate pop to survive. That’s very telling and negatively impactful to the music business as a whole. The music business worked fine when you had pop stars and you had rock stars and everyone was doing their own thing.
Corgan also said rock should be waging war on pop music, pop is turning into pornography, and sales are down because everyone wants to chase trends and no one wants to be an iconic individual.
I've a lot of time for BC. Besides being a phenomenally talented and ridiculously prolific songwriter and musician (seriously, the amount of non-album SP tracks is mindblowing) he was once tremendously kind and thoughtful to me when I was struggling through some stuff.
To me rock and roll is pretty much anything rooted in the combo of drums, bass; lead & rhythm guitar. But yeah labelling isn't really worth it. There's too much crossover.
I agree with your last paragraph. And.. you know Billy? Nice he was able to help you out
