If you click disagree, the site just doesn’t work at all. Instead, gadgethacks.com shows you this.
You know, normal sites make you to accept the bare minimum that is required for the site to work, and give you an option to accept or deny all the tracking cancer and advertising plague.
Browsers should start enabling deleting every data from any website other than explicitly allowed ones by default.
Sadly this doesn't stop fingerprinting, though it does make it a bit more difficult.
I've been using CAD (Cookie-AutoDelete) to do exactly that:
https://github.com/Cookie-AutoDelete/Cookie-AutoDelete
On my iPhone, I use Firefox Focus as my default browser. It deletes all cookies after every session!
Firefox and Chromium do support what this extension does natively.
You can do that for sure in firefox, but it will break some sites, especially any that needs some kind of login or settings.