Why are some popular songs labeled as vulgar, earthy and tasteless?

The so-called popular, there is the meaning of easy to understand, itself in the "elegant" not related. The popular culture is also popular culture, which should not be derogatory in itself. Personally, I feel that there are a couple of problems with these songs that make them less appealing to me: first, they are not listenable. The first is that they are not pleasant to listen to, because they are shallow and don't have a lot of points to think about, so the flavor fades as you listen to them; the second is that they are played at too high a rate, making people feel uncomfortable with being forced to listen to them;