Just a thought: Perhaps more people will start to make music amateurly, but that doesn't extinguish an appreciation for artists who make music for a living and have been studying it seriously for years. If anything, I think great artists inspire people to take up art amateurly.
I think we as musicians just have to keep thinking up new, creative ways of presenting our music and of creating projects that we work on. Everyone says that you just have to find your own nitch. Classical music certainly won't 'die out' or anything, people's tastes will change back and forth, popularity will rise and fall, it's just how things work, and I don't know how reasonable it is to worry quite so much about it.
I'm just overwhelmed and am not quite sure what else there is to say.