Interesting question but the options include only the current talking points and spin. They are no more than finger pointing and blame. Read a bit on the end of the 19th century and you'll find the same sentiments and same nonsensical spin. But on the more serious side what would be a serious threat, again obvious, read about the worldwide great depression and the effect it had on some nations. We got through it OK because American politicians worked at it and created a more equitable society. Economic decline and the inequalities it creates are the greatest threat to security and a peaceful society. See my signature for the facts.
"There is no test of the good society so clear, so decisive, as its willingness to tax - to forgo private income, expenditures and the expensively cultivated superfluities of private consumption - in order to develop and sustain a strong educational system for all its citizens. The economic rewards of so doing are not in doubt. Nor the political gains. But the true reward is in the larger, deeper, better life for everyone that only education provides." John Kenneth Galbraith, 'The Good Society'