You are being unfair to the spirit of the original quote.

Yes, the quote is naive in expecting a world where those who own share with those who rent without nefarious motives. But sharing, particularly in this context when profit is out of the equation, is a great idea. I don't have the money nor space for my own 3D printer, but thanks to my local library I own objectively more 3D printed stuff than I would without them.

What?

I’d love to be able to borrow a sewing machine, tools, etc. I live in a small flat and I don’t need permanent ownership of those things. They spend 99.5% of the time sat taking up space. What good is that? For a lot of machines it’s not good to leave them idle, or sat in a shed collecting mould and rust.