This is quite funny because my mum had a discussion with someone about this today. wasn't you was it?
But I think you are wrong.
Era's change, and so does the music, and what about the people before the beatles?
There was music before then.
And are you saying that classical music, written in the 1600 are crap, just because your era 'was the 'best'?
Times change and people grow up with different music and different experiences, making them relate to certain songs.
There is some great music and musicians today and some seriously awful ones, just as there was back then.
And no doubt, in 60 years time, some bands of today will be idolised the way the beatles were.