Ignorant people in general make me sad, especially people who think that the Internet is only good for Facebook and mindless entertainment. You have access to nearly the entirety of human knowledge because you can beam information to a manmade construction in orbit above Earth. That alone is pretty freaking cool IMO. It is the greatest tool for scientific collaboration and every medium for art (movies, text, images, etc.) blended into one. Lonely people can form friendships that last a lifetime with total strangers because they were shoved together in an MMORPG. Services like Google Translate let people from different countries talk to eachother, and while it doesn't always work perfectly we're still better off for its existence.
As somebody who feels that digital technology (especially the Internet) is potentially the greatest force for good that has existed in the history of mankind, it's astounding how blind some people can be to its power. I literally learned (very basic) rocket science because I downloaded a videogame on a whim. The possibilities are literally endless. And there are still people who think that we're better off without it. To me, that idea is like the paradox that destroys a supercomputer in an old science fiction serial; it's a thought so utterly confounding that I can't tear myself away from it. And it makes me very sad.