The core of this matter is what one considers as having "worth" vs. what they consider to be "worthless".

If someone doesn't care that their savings can be debased, or that someone can stop them from sending or receiving payments, or that someone can directly steal their money, then yes, they won't see any value in Bitcoin, and rightly call it "worthless." For them.

But I know of no sane or living person who feels that way. They probably wouldn't value oxygen or food either, so they wouldn't last long.