> Without going into an argument about the relative importance, shouldn't at least some significant portion be distributed towards solving the human and civil rights, liberties, and justice abuses here in America?

I would guess that a country with stable institutions, high GDP per capita value, democracy and the highest absolute military spending this issue could be addressed in the ballot box. In the richest democracies on earth fixing these issues is a question of resource allocation. And plenty of organizations are working towards that already.