Only a few of those are labor cost issues, and most of those are not typically migrant labor (truck drivers and grocery employees). That leaves the truck loaders, which is much less work per apple than picking.

Point being, this "$10/lb" is extreme exaggeration.

Now, it's probably true that orchard owners would love the free 3 cents a pound (or 2, or 1). And they're not going to leave money on the table when others can get away with hiring cheaper illegal labor. But the idea that apples have to be that much more expensive is pushing it.