And illegals are costing annually: This report (2013) estimates the annual costs of illegal immigration at the federal, state and local level to be about $113 billion; nearly $29 billion at the federal level and $84 billion at the state and local level.
Great information. It’s probably at least 3-4 times that with actuals (population vs. 12M) and costs so that’s ~$452B per year.
Based on Heritage $452B/year x 20years= $9T
My WAG 100 x $166B= $16.6T
At least I’m in the same order of magnitude.