I can't vouch for the accuracy of my numbers.
No kidding. I sure would like to read your sources for your numbers and your estimates. I believe that you are using every mile of our border, whether it be land or sea entry, in your estimates. If I take 30,000 people/66 miles, I get 454 per mile. BUT, extrapolating that over our LAND border, about 6000 miles (not counting Alaska-Canada border), I get about 2.8 million people. WAY less than 40 million. Still not good, but try to be closer.
As far as Operation Gatekeeper and its successes, I will read any link that you have because I severly doubt ANY data publicized from the Clinton Administration. Just look here for a GLARING example:
1997 US Annual Report
Here is the example:
For fiscal years 1991 and beyond, the excess of Social Security taxes over outlays for Social Security is excluded by law from the deficit calculation. This amount was $52 billion in 1996 and $68 billion in 1997. The Clinton Administration, however, has elected to include the Social Security Trust Fund in the deficit calculation, which has the effect of reducing the reported deficit. Exclusion of the Trust Fund surpluses would increase the reported deficits to $159 billion in 1996 and $91 billion in 1997.
Well, you and I can pretend that illegals can't arrive via water, but that won't stop them. Ask the people in Miami.
It's also the preferred route for drug smuggling because the odds of being caught are less. If you seal the land routes, they will just increase usage of the water routes.
In addition to the people entering by land and sea surface routes, you need to add in the number who fly across in small planes. Another favorite method of drug smugglers, the Texas landscape is littered with unmarked private landing fields and private blacktopped "roads".
And since an estimated 50% of illegals currently in the U.S. originally entered legally as tourists, students, business biz etc... and simply didn't go home after their time expired, factor in another unlimited millions.