Stupid Tom, they wouldn't collect retirement benefits unless they wound up staying here and became citizens--which is not what most of them even want, aside from how difficult and protracted the process would be. And in any event, it would be decades before they could.
Stupid Tom, they wouldn't collect unemployment benefits because they wouldn't know how to navigate the system, file forms, etc. Many of them wouldn't even know they were eligible. Similarly, they wouldn't get state or federal tax refunds because they don't understand the tax forms and are usually too poor to hire a tax preparer.
But your position comes from race hatred and is immune to facts or logic.
Stupid Tommie-poo.