If you like that kind of music. There's absolutely no way in hell you will ever convince me that Kanye, or Daft Punk, have any, even most remote, relation to music, or art in general. Never heard the other ones, so I am not going to comment. And in the contemporary genres that I care about (adding contemporary, because really, Bach is better anyway, but I don't necessarily want to listen to classical all the time) it has been all downhill since the 70's.
All a matter of taste. There might have been a proliferation of genres, especially if you start enumerating all the (absolutely identical-sounding unless you are a trained maniac) varieties of Scandinavian Death Metal or electronic music, so it might be easier to come by something you like today, but it's not any better than what survived from 300 years ago, I would hazard a guess that very little, if any, of kanyes and deadmou5-es will survive even 10 years, let alone 300.
All a matter of taste. There might have been a proliferation of genres, especially if you start enumerating all the (absolutely identical-sounding unless you are a trained maniac) varieties of Scandinavian Death Metal or electronic music, so it might be easier to come by something you like today, but it's not any better than what survived from 300 years ago, I would hazard a guess that very little, if any, of kanyes and deadmou5-es will survive even 10 years, let alone 300.