Reposted from Quora:

I would argue the USA desperately needs open borders to avoid economic disaster.

Consider that:

1: There are 11 million ordinary, hard-working people willing to risk their lives and prison time to create a better life for their families.

2: There are 11 million American business owners who need hard-working non-professional workers desperately enough to break the law

3: US immigration law makes it nearly impossible for honest, hardworking non-professionals to become Americans legally.

Why are American businesses so desperate for workers that they are willing to break the law? There is a record number of unfilled positions in small businesses. America’s population is aging, and this will cause severe economic problems due to the unsustainable nature of our welfare programs.

The chief problem is the USA has been surviving on IOUs for decades, funding wars and welfare programs with debt. Trump’s budget means the welfare-warfare state is more unsustainable than ever, and within a decade, baby boomers will bankrupt social security and other programs.

The USA must have young, hard-working immigrants to avoid economic collapse. Illegal immigrants are even better since they pay into social security and Medicare/Medicaid taxes, but are ineligible to collect benefits.

The free movement of labor across borders is the single most beneficial variable in the US economy:

“According to the paper Economics and Emigration: Trillion-Dollar Bills on the Sidewalk? (2011) by Michael Clemens at the Center for Global Development, open borders could lead to a one-time boost in world GDP by about 50-150%.

Want a global economic boom? Open the borders

” typical workers in developing countries would see annual wages more than double, from an average of $8,903 today to $19,272 with open borders. That is, the typical worker in the third world would end up making about double the individual poverty line in the United States today. “

A world of free movement would be $78 trillion richer