First, that's not what this is talking about. "Leave to renew" becoming "leave, and you will not be renewed" on a whim is insane, self-destructive cruelty.

But also, it's only been "the policy" since 2004. That's technically "decades", but only just, and it was also introduced for idiotic pretextual reasons. The ostensible reason is that domestic State Department offices don't have the equipment to capture biometric data. Seriously. That's the argument. The law doesn't say "you have to leave to renew", it says "you have to get fingerprinted to renew", and conveniently there's nowhere in the United States that can do that, despite every police station in the country having that equipment at this point.