And the figure I have heard is that at least 3X as many get through without being caught....
Now THAT is terrifying!
If 3000-12000 Americans were crossing the border into ANY country illegally, that would likely be considered an act of agression/war. No country in our history has been successful in defeating the US by military might - but wasn't it Kruschev who said that the Soviets would crush the US, not through military, but from the inside? Little did we know that it would involve the Democrat Party and illegal aliens....
It is easy to pull any number out of the air but one would be wise to dismiss exaggerations. Credible figures indicate that less than a million illegals come over the border per year.
Invasions are not private movements of people. America did not "invade" Texas because thousands of Americans came in when it was part of Mexico. Not even when Davy Crockett and his Tennesseans came to fight was it an American invasion.
Nor will illegals destroy America. Much more danger is posed by the Party of Treason than just by illegals.