If that was the case, all of these "lost" tax payments would show-up in government revenue figures. And they're not. But obvously, for the jobs that have left our shores, the foreign workers do not spend their money in all these places. Therefore the lack has to show up as less government revenue.
Show me your numbers.
How about you show me yours first? I am especially interest in a break-down of tax revenue lost due to out-sourcing. Good Luck.