There is certainly a penchant for creating music featuring cristal, ho's, and the size of one's booty. However, that's just some popular music. There's probably more songs featuring that end of the spectrum as culture widens. There's also lots of room for good songs, and here's just a few examples from the current top songs:
7 Years by Lukas Graham
No by Meghan Trainor seems to be the antithesis to the culture you're pointing out
Love Yourself by Justin Beiber
One Call Away by Charlie Puth
Stitches by Shawn Mendes
Hello by Adele
Taylor Swift, just about any song you want to choose
......and I could go on and on. Those are all recent chart topping hits. You can look at those or choose others to focus on. That's the beauty of music today, that you can find all types. And these are just "pop" songs. There are plenty of rock, country, alternative, rap, etc. songs that aren't what you're focusing on to define modern music. It certainly has that element, along with a huge amount of every other type of music. Maybe certain things weren't talked about back in the day, but that didn't mean that they didn't exist. You can find whatever you want to find in music today.