To be honest I think it went downhill in the 2000s. Every song now has no funky tune like the 80s and the theme is pretty much about the same thing (partying and boyfriends), barely anyone writes their own music anymore, most of it has inappropriate lyrics and shit that doesn't make sense (remember when some rap songs were actually appropriate for families to listen to lol?), their voices are now fake and computerized, no one has a good/unique voice, every pop song has rap in it. Why is music so bad now? I can't believe that crap that most people like nowadays. Classical music/ jazz is actually smart music and people hate it. Everywhere I go extremely embarrassing melodies are played including instruments mixed together that just sound like a mess, also fucking Justin Bieber. For real, 2016 has absolute trash music compared to the glory days of classic music 1980s - 1990s. We are going backwards.
People have continued to say the exact same stuff you're saying all throughout time. Everyone always thinks the music they liked earlier in life was some kind of golden heyday in music history. You can go as far back as the 1800s, look at reviews for the music of Nicolo Paganini, and find people talking about how near-sacrilegious his music was, how terrible it was, how times had apparently changed for the worse and everything was going to hell. But if you played that same music for the average person today, and compare it to something that came before it, most people wouldn't be able to tell the difference.
The only truth of it all is that music changes over time. Music doesn't get "worse." Sure, there's a lot of stuff out there nowadays that I'd consider absolute crap, but that's always been the case. For everything you consider to be good from a given era, there's usually an equal or greater amount that you'd hate from that same era. The 50s, 60s, 70s, 80s, and 90s were all full of downright awful, simplistic music, aside from the things we actually like and remember.
I'd say the only thing that's truly changed is the method of music distribution. With the world being so interconnected nowadays, information as a whole is saturated throughout our culture, and music is a part of that.
Great music is still being made all the time, you just have to look for it . Dig past the crap. Experiment with different genres, look for music from other countries. You're talking about radio tripe, but that shit has always been pretty "meh." Look for things that aren't on the radio and you might find something great.
EDIT: Just realized AG said halfway the same thing, though I can't say I agree about music nowadays being all about the money; it is true, but that's always been the case.
Also:
Welcome to being old.