Abolish the borders. Anyone who can pass a criminal background check gets in, no more questions asked. Immigration is our #1 competitive advantage in the US, as the entire rest of the industrialized world slips into a demographic abyss.
Immigrants bring their “deep culture” with them to their new countries: https://www.wsj.com/articles/the-culture-transplant-review-i.... Even generations later, Americans originating from different parts of Europe depict the same differences in basic cultural attitudes like social trust as their counterparts in Europe. (E.g. German Americans are much more trusting than Italian Americans, as are Germans versus Italians in Europe.) Eliminating the border would be a great way to turn the US into Mexico.
> Anyone who can pass a criminal background check gets in
"In" to what? You have to have borders for there to be anything to get in to.
People are anything but.
Actual humans have ideas, values, beliefs, religions, obligations, loyalties, desires, etc...
And they also differ a lot in brainpower and ability (and desire) to work!