It's really incredibly interesting to think about, and I don't find it sad at all. I find the idea that our consciousness arises entirely from physically explicable mechanisms both probably true and fascinating, and does nothing to remove the wonder and magic. I can also assure you that the estimation of the richness of my experience (and yours) doesn't suffer for it. What does suffer for it is my estimation of my own importance in the grand scheme of things. Anthropocentrism completely collapses in my worldview, as do models of justice that prioritize assigning blame or punishment over outcomes. I think it brings me to a more reliable model of the world which helps me make better choices, and the world would be better for it if more people adopted it.