They could still shut it down TODAY if they wanted to, but like you said, they don’t. That at least might keep a few of the worst ones out. Right now, they are multiplying during the free-for-all madness.
Then, lock the rest out of the benefits, and they’d start leaving. How hard is that?? You know 29 - 41% are only here to collect welfare and breed on our dime, and could never last long without their “free” money.