Somebody has to work to pay my social security, for one thing.
In a discussion here a few years ago -- I think Faith was involved -- discussion brought up a resource (OK, I seem to recall that I myself had found it) that compared
on a state-by-state basis what undocumented people drew from the community (eg, "welfare" which they're not eligible for anyway) versus what they contribute. Basically, as I recall, each state compared the taxes received from the undocumented and the services they received. What was found was that not only were those figures not out of line with the same figures for citizens, but they were actually paying
more in taxes than they were getting back in benefits.
Part of that was the black market in fake Social Security numbers (SSN, which I only know as a military abbreviation). An undocumented worker could get a fake SSN so that his employer could go through the motions of operating legitimately -- some employers, such as Trump properties, would obtain those fake SSNs for those workers. That meant that FICA deductions (Social Security and Medicare) would be taken out of the workers' pay (7.5% match by the employer for a total of 15%). However, there is a catch: those workers, because their SSNs are fake,
can never collect those benefits.
That means that those undocumented workers using fake SSNs are indeed paying for your own Social Security
but not for their own.
That should make you happy.