“Can we afford any of it?”
Do you believe we can afford foreign aid? And nation-building in Iraq and Afghanistan (where we fund health care, education, and infrastructure)? If you do believe these expenditures for foreignors are “affordable,” why do you object to spending money on Americans at home?
It’s more accurate to say ALL foreign aid is spent on America than what you posit!
If you like SF, Keith Lsumer has some good ‘Retief’ stories on this subject.