I agree with Jeanette. The new stuff today has no imagination.
No one raps (aka talks/discusses) about the real pressing matters of today, which is what rapping was originally for. All they do is say how they have more money than you, and how the can have sex with any woman they choose. In the old rapping, even if they weren't going the sing one note in the entire thing, they AT LEAST had real instruments playing behind them, and real singers, not something they got off a sound effect website, and one beat that, for some reason, travels from one song artist (if that's what you really NEED to call them...) to the next. Granted, there are a few, (SLIM to none, to non-existent) that actually TRY (sometimes) to make good music, but for the most part, it's crud.
As for the rest, it doesn't matter about the lyrics now. People listen to the music, which isn't much, and think it's the most awesome stuff they've ever heard, while in the meantime they compare their crappy stuff to the equally not-as-awesome 40's songs, which, for what I've heard, all sounded the same. "Old School", a term normally understood to be impacting, emotional, and influential music, is now meant as "crappy" by the minds of pleasure-seeking, hedonistic, rage-the-head-off-your-neck teenagers. Get out of that! Focus on the 70's, like Marvin Gaye, Curtis Mayfield, Tower of Power, Average White Band, and the like. Focus on the 90's rappers, that actually had more to say than just how many pounds of gold jewelry they're planning on wearing around their overly-tattooed neck. You'll find that their lyrics AND music COMBINED (no wait, that would be too much power for this new stuff) would kick today's music in the butt!
P.S. I'm not a day over 20
From the inner sanctions of my musical mind....