It would seem that a lot of people have very strong opinions about what constitutes 'real' music. The folks who litter the social media superhighway with this kind of crap are perfectly happy to dismiss entire genres out of hand for pretty flimsy reasons: hip-hop isn't 'real' music because Kanye West uses samples instead of playing his own instruments, and pop isn't 'real' music because autotune is cheating, you guys. R&B isn't 'real' music because...it isn't Bohemian Rhapsody, I guess?
Note that it's pretty easy to do this in the other direction - Bicycle Race, anyone?
Of course, all music is 'real' music. This 'down with everything but a very narrow definition of rock music' attitude is the pits, and it's particularly disappointing when these little nuggets of Luddism are being propagated by people you know. I don't want to suggest that these #realmusic memes are anywhere near as bad as those terrifying 'Britain First' posts, but honestly, they cause me to react in much the same way: Ew, really? I thought better of you, person who shared this. You just went way down in my estimations.