Recruitment and hiring has been a mess for decades, though, especially in tech.

It's like all the leetcode bullshit. We know that is not a valid measurement for actual performance in a dev job, but that doesn't stop managers from using it.

What they need is a number, a rating, on how much of a fit each candidate is, through some process that can be described as objective and fair. The algorithms provide that.

If we make this illegal, they'll just come up with some other bullshit.

In an ideal world, companies would assess each and every candidate individually and on their merits. But no-one has time or patience for that, so we have these bullshit systems.