I'm probably alone in this, but WEI is a good thing. Anyone who's run a site knows the headache around bots. Sites that don't care about bots can simply not use WEI. Of course, we know they will use it, because bots are a headache. Millions of engineer hours are wasted yearly on bot nonsense.
With the improvements in AI this was inevitable anyway. Anyone who thinks otherwise is delusional. Reap what you sow and what not.
edit: removing ssl comparison since it's not really my point to begin with
A TLS client does not contain any trusted private key. You can write one yourself by reading the RFCs. The same is not true for WEI.
The EV certs still exists, but the browsers don't really differenciate between DV and EV certs anymore.
But TLS certificates solve a much narrower problem than WEI ("are you communicating with the site you think you are") and are widely and cheaply available from multiple organizationally independent certificate authorities.
In particular, TLS certificates don't try to make an assertion about the website visited, i.e. "this site is operated by honest people, not scammers". WEI does, with the assertion being something like "this browser will not allow injecting scripts or blocking elements".