Given the magnitude of the number of people who need to be immediately gone, they will have their hands full with that.

Again, though, not really relevant unless they actually do limit that first wave to going after only those people. There's been no official policy drafted yet, of course; but it's not like Trump or Miller have come out and said that the policy you're describing is the one they're going to pursue.

And I think you're overstating how many people are actually, practically deportable in this first wave. The first two categories (active arrest warrants and national security threats) are and have been priorities for deportation for a long time. The reason they haven't been deported is because ICE can't put their hands on them. That's not especially likely to change. Plus, they're not the biggest group.

The biggest group are the ones that already have removal orders. But again, there's a reason why those folks haven't actually been removed. You can't remove someone unless you can physically and legally transport them back to their home country. A non-trivial portion of these folks simply can't be removed. Some are from countries that won't accept any removals from the U.S.; others simply lack any documentation to show that they're citizens from their native countries, so they specifically won't be accepted. Another non-trivial number have deferrals for practical reasons - they have serious medical conditions and can't be safely transported, or they are from parts of the world where it is simply very difficult to arrange transport to (easier to have another full flight to Honduras than try to get folks back.

The overwhelming bulk of the rest are the people who haven't been physically removed because our resources for moving people back to their country of origin are limited and they are very low priority. These are the folks that haven't committed any crimes since they arrived and are often heads of households of families (often with spouses or minors who depend upon them for support). And a fair number of Abuelitas.

Pretty quickly, you're going to find yourself in a position where you're prioritizing for removal a swath of the population that's more sympathetic than the "criminals" and "national security threats," but just folks that have been here without incident for quite some time.