This is no theory, it is a fact, acknowledged by the SSA, as well as the Center for Immigration Studies.
You blew off the major point of my post. The boomer retirees are making huge salaries and huge social security contributions. The illegals make very small incomes in comparison. The social security contributions of illegals will not cover the benefits they (the illegals) are extracting. They won't do ANYTHING for the loss of contributions from retiring boomers. That is a complete red herring. Illegal alien contributions to social security are not going to do a thing to fix social security shortfalls. They will just make it worse by draining services.