An interesting read James - you write well.
I would say that every generation has a lot of awful pop music that's forgotten as the years go by. Sure the 1970's had T Rex, Bowie and Split Enz, but it also had The Osmonds, the Nolans and the Bay City Rollers.
JLS, Little Mix and Olly Murs, anyone? There's a lot of really good pop music out there. But there's a lot of every kind of music, and of course, the majority of it ain't as good as the best of it.
You may hate them, but take that are a great example. Started off being likely contenders for 90s shitty pop hell, turned out to have a top songwriter on board, and a credible second-coming career.
Much as it ain't my cup of tea, I expect that Lady Gaga will be remembered as will the likes of Britney, Justin Trousersnake, Aguilera et al.
I prefer my pop music to be more arty, and I'll take Bjork over Bieber any day of the week, any week of my life.
Is the golden era of pop over, or is it just too overcrowded to be seen clearly at the moment? I think the economics of making records has probably introduced a bias toward a quick buck without having to spend money developing artists. I hope once the industry sorts itself out, it'll go back to championing innovative and catchy music.