There's a guy on You Tube named Rick Beato that does some really interesting analysis of songs and what makes a good song, and why some songs are great. He's tackled this issue a couple of times, always much the same conclusion: all pop music sounds the same because it is. There are only so many notes, and the record producers all want the sounds that will sell, they don't care if its good or bad; or done before.
Here's a sample.