Who will host the webpage in your scenario?
https://blog.hypercore-protocol.org/posts/announcing-hyperdr...
Cloudflare has an ipfs gateway. https://blog.cloudflare.com/distributed-web-gateway/
The Brave browser also supports ipfs out of the box.
This is the Web 3.0 movement. The distributed web is on its way.
Edit: you sound a bit rattled. I didn’t mean to instigate.
Tor hidden services don't provide permanent storage. It's just a routing protocol.
BitTorrent doesn't guarantee storage, either. A popular site will remain de facto stable, but the long tail is a different story.
Every. Single. Time. This idea comes up, and it always fails because the economics just don't work out. Someone needs to take care of all those terabytes of data. Routing is pretty cheap, and can basically be thought of as solved by Tor, I2P, IPFS, BitTorrent, etc. If you're willing to keep your PC on 24/7, it's easy, but nobody can expect that.
The closest you can get is FreeNet. Kinda. It's better than BitTorrent, but still worse than S3, because of course it is, it's free.
A much more sensible response would be "That button lets them pay $2/year for a basic hosting account which makes the service self sustaining".
edit: Beaker browser is what youre looking for