I love pop music. Because it talks about things I can relate to. I like rap too. Mostly Lil' Kim. But she raps about things I like, money and dick. The beats are fun and infectious. It doesn't need to be serious.
Not to mention many "classics" are not technically impressive. Nor are the singers any good. For example look at Geddy Lee. He's an awful singer. Eddie Vedder, Billy Corgan, Kurt Cobain (who also couldn't play guitar), Thom Yorke, and Bob Dylan. None of them are very good.
Somehow people justify it, yet they criticize pop singers for having "bad" voices.
Look at lots of pop singers, they're genuinely talented. Amy Winehouse, Adele, Beyonce, Whitney Houston, Mariah Carey, Michael Jackson.
People who were considered pop in their day are now classics.