It's not even that arrogant imo. People who regard themselves as serious about music will smirk and nod in agreement.
Who are you to define the love of music? No better than Apple.
Here's a starter: I don't think taste is subjective and those that do believe it is just haven't developed any (yet). There is no shame in that, the shame should be not wanting to extend yourself.
I'm not saying everybody has to have the same taste, clearly everyone can enjoy different things. But there is a clear difference between having taste (of some sort) and not having any. Ask any designer, visual artist, musician, or apparently, Linus Torvalds.
This is btw not meant to disparage the great-grandfather comment about enjoying music at all, it's started this discussion, but is not related to it.