Every generation loves its own pop music - it's the soundtrack to our lives, or at least it was before the advent of technology which has meant that music is absolutely everywhere, with attendant dilution of its appeal and lasting impact.
The result has been that from the late 1980's and certainly into the '90's and to the present day, pop music has a built-in anonymity and obsolescence that was simply not the case in earlier times.
It means that the current attitude is to create very heavily produced homogeneous singles from artists with negligible identity and attendant lack of impact on the memory of listeners, who actually don't care, because there is so much else clamouring for their free-time attention.
As a (ahem!) senior music listener, I personally bemoan the lack of intensity and impact that modern pop music has, or indeed is meant to have, on its target audience, but that is not simply a case of mourning my lost youth, and wishing things were the same now as then.
As a professional music journalist, I can employ a completely objective view of the music I hear - as I have done above, and with that hat on, I can say that pop music has its good and bad, as it always has since Day One.
But as someone who was captivated by the appearances of David Bowie and Marc Bolan, I cannot for a moment imagine lasting memories like those being created from the modern crop of pop stars.
As you say, it is is unmemorable - but that is because it is designed to be so - more is the pity.