I didn't say there wasn't any good music in the 60's. There is "some" good music in every decade. I used to have quite the Motown collection, myself.
Last summer, Sirius XM put to a vote by listeners of the best songs of the 70's, for a Top 700 playlist. There were probably 1,500 songs to choose from, and it was VERY difficult to narrow it down to 700. (BTW, Hotel California made #1. Not my first pick, but still a great song thanks to outstanding guitar work by Joe Walsh and Don Felder.)