Avoids some chaos to allow the visa over-stayers to voluntarily leave, also, if they have dependents they go too so Democrats can’t say we are breaking up families.
The others will be enough chaos with Democrats/media predictable interference.
No chaos will ensue if we enforce the law. The 1996 US-VISIT program was never fully implemented. It was supposed to track and deport visa overstays. We need to have such a program immediately. We know who comes in by scanning their passports on arrival and departure. They can get past violators as well as future ones. And we can deport them without a lot of legal hearings. It is pretty cut and dried. They violated the terms of their visas.
If they have dependents then they will have to fight those battles back in their home countries.