Not at all. They'd merely have to pay a "living wage".
Moreover, we have a lot of legal residents and citizens on "aid". Lots of them can do farm work. (Yes, I know how hard farm labor is. I've done it. Have you?)
As to child care, the ones who can't do farm labor can provide it. After all, we trust them with their kids, so surely we can tell some of them that their aid depends on them taking care of other people's kids. (Of course, we'd have to break the social workers hold on such activities. Welfare programs are pretty much designed for the providers.)
Farm labor costs are a very small fraction of total food costs.
> send every single California farm into bankruptcy?
Bollocks. You're repeating industry propaganda. Some farms on the margin may go, but so what.
How about silicon valley takes a hiatus from frivolous social apps and make some good fruit picking robots so nobody has to do it? It wouldn't make business sense now, but post deportation it might.
> How about silicon valley takes a hiatus from frivolous social apps and make some good fruit picking robots so nobody has to do it? It wouldn't make business sense now, but post deportation it might.
Frivolous social apps exist because a market for them exists. Furthermore, the manufacture of web apps is significantly easier than the manufacture of machines with image processing and manipulation skills capable of matching an immigrant.
The initial cost of purchasing robots capable of harvesting fruit would be astronomical, probably enough to send more than a few farms on the margin into deep debt or bankruptcy. I can't imagine what the support costs for such an operation would be.
"Those damn illegals" are pretty critical, in real life.