I usually agree with you, but lately, I have seen amazing advances in using video as a medium to teach ideas.

I think the standout for me would be the channel 3Blue1Brown on Youtube, which teaches math concepts with animated videos, in a way that is just amazing. I highly recommend it if you're at all interested in math.

(And no, this doesn't replace the kind of textbook learning you need to actually understand math. It's more about concepts and ideas. But it's still amazingly valuable).