"I'd rather listen to Petty/Young recorded on a 1970s portable mono tape recorder in terrible quality than much of today's garbage written and recorded on an iPad by someone who classifies their music as "grime"."
And there is the beauty of subjectivity. I love the classics (and much classical), I also enjoy much modern music.
I regularly listen to The Stones, Beatles, Petty, Young (although his nonsense promoting the dubious merits of HD music have irritated me beyond belief), I also love many modern bands, artists and even electronic music written and composed on laptops (or possibly even tablets).
What makes music good or bad? Some of the worst music in my ears is self-gratification style jazz blowouts, or hyper-difficult and hyper-unlistenable guitar solos. A huge amount of talent and not (in my ears) a huge amount of fun (Much like the recent world-record of a high A hit by Audrey Luna).
You want modern music with the soul of your examples? Try Ray LaMontagne, Gregory Alan Isakov, Elbow, First Aid Kit, London Grammar, to name a few off the top of my head. Take a listen to Radio Paradise.
But don't disregard modern pop, rock or anything, because YOU don't like it. Many do.