You can use bitcoin cash as much as you want, why don't you and why doesn't everyone else? Why isn't it worth more than bitcoin if so many people agree with you.

If 95% agree on something, why wait for the other 5 it's a stable shift regardless?

You can't upload a jpeg to most blockchains (eth included) you can upload a pointer but that's not a jpeg or parts of the file across multiple transactions but I doubt anyone's done that recently or found a way to do it that's useful. Anyone can already do that too.