I hear what you're saying, but the same can be said of any genre of music somebody doesn't like. Of course it all sounds the same....and again, that's true of every type of music. When you hear a song, you can instantly identify it as pop, metal, country, classical, jazz or whatever....because each genre has a distinct sound and characteristics. Within each genre there are variations, but to an untrained ear, they can be subtle. It's kinda like coffee.Either you like coffee, or you don't. If you don't like it, you can't appreciate the difference between dark roast, light roast, Colombian, Arabica, instant or drip.
To my ear, all rap sounds the same....and I don't get it. To my ear, all metal is just distorted noise. And yes, I agree that modern country all sounds the same. The music industry has found a sound that sells, and as long as it's making money, they'll keep churning out the same sound.
Just to add a little perspective, as to how somebody could like country music, I started out as a rocker in the 60's. I cruised with 8-tracks by Led Zeppelin, The Beatles, Grateful Dead, Grand Funk Railroad, Steppenwolf, etc. I also liked The Byrds, Crosby Stills Nash & Young, New Riders, Creedence, and The Eagles. One thing that second list of bands have in common is that some of their songs crossed over into country. One thing led to another and I ended up playing guitar and pedal steel in country bands. To me, country peaked in the 80's and all the new stuff sounds the same...but that's just my opinion, and you are entitled to yours.
Playing guitar since 1964