Unfortunately, there would not be incalculable costs in another recession - I'm certainly not talking about just enforcement costs here - what I am worried about is whether ALL "costs" from whatever happens exceeds the "savings" of $50 billion, then I don't think any conservative in his / her right mind would be for it. Similarly, if it could be proven that the "costs" were less than the "savings" I would be for the wall too.
lol Sure you would.
I don't see it as a given that deporting the helots would create a recession. What is more likely is that aspects of the economy which cannot be profitably undertaken here will go elsewhere, adjusting to the availability of labor. In the meantime, the US would be free of the costs of hosting the alien population, which should go a long way to offset our expenses in getting it done. And if we truly needed more foreign labor here then we could adjust the immigration laws to allow it.
In a free country it is the right of the people to make those decisions, they should not be taken from us by renegade public officeholders. The decisions we have already made are what makes the illegals illegal in the first place, and failing to enforce those laws strips Americans of their suffrage.