Did illegal aliens really build America? Are they the reason our economy is growing?

Joe Biden in his apology to the killer of Laken Riley who he called an illegal said that illegal aliens built America and they are helping our economy. Is this true? Does spending a half a trillion dollars on people who just take from us without contributing really help the economy? Did people who were unlawfully in America work in our factories or worked on our farms? Were they cops and firefighters? Did they become business owners?

Did illegal aliens really build America? Are they the reason our economy is growing?
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