This passage from the Onion article sums up my opinion on this perfectly:
You have to be willing to wade into unfamiliar waters to find the most exciting artists, and that can be tough for older listeners who are accustomed to music with firmly established parameters. Sometimes, it’s just easier to stick with what you know.
I get that. What I don’t get is the hostility that new music sometimes engenders among aging fans. I’ve chided friends who grew up on punk and indie music for turning into what they always hated—nostalgia-happy, past-worshipping hippies—because they can’t consider the latest buzz band without going into the same tired rant about how artists today don’t have “edge,” “relevance,” or “originality” by comparison with some overly idealized group from their past. I find that this opinion tends to say more about the listener than the state of contemporary music, which is too vast to be summed up by such sweepingly reductive statements.
So, like I said above, if you don't have the time or energy as you get older to try and keep up, because of more pressing priorities, I get that completely. It can be very daunting to try and keep up on everything new that comes out - it's impossible for me, and I spend a lot of time on it. But don't let that inundation intimidate you into just writing it all off as "sucking". Puck, you can't seriously think that all new music is turning into soft rock.
Also, as Puck mentions, what makes anyone think that the signal to noise ratio is any different in music now than it was 20, 30, or 40 years ago? There's just more of both now, because of how easy it is for artists to get their music published into a medium that people can access easily - digital files, streams, etc. It means way more crap, yes, but way more great music too.
Beamer, if you can't find a local station that you like, you can stream one. Virtually every station nationally has an online stream. If you like indie rock, there are stations like KEXP out of Seattle, or The Alternate Side from WFUV in New York, which streams all day, even when the program itself isn't on air. You seem like you listen to harder stuff, and I don't have any specific suggestions for that, but I'm sure it's out there.
Just don't be that guy - your older cousin or uncle who used to stand over your shoulder when you were watching MTV in the 80s and told you how much everything you were listening to sucked, and how everyone when he was growing up did it better. That guy is a dick.