I'm sorry, but this going off into new age territory. There are distinct characteristics and traits that defines a genre. You're welcome to interpret however you want, but the complexity of the genre system will still be there. Stylistic variation and evolution is a clear indicator for what differentiate one flavor of music from another. But at the same time, artists can be more fluid with crossing genres (ie: Andre 3000- THE LOVE BELOW, Nina Simone's career). It still doesn't erase the fact that there is a genre system established that the artists themselves rely on.