TOTAL FEDERAL ECONOMIC IMPACT OF ILLEGAL IMMIGRATION: 30.4 Billions
BUT, Please DO NOT even think of saying it would endanger animal species, because as far as I’m concerned the Human species is more important.
Here is another article about the cost comparisons: The Cost of a Border Wall vs. the Cost of Illegal Immigration
The Globalists in the US government refuse to allow the Wall to be built. If you understand the Globalist Agenda, you understand their motivation: TREASON