* The original argument is that the US military spending is abnormally high, when considered as a raw dollar amount.
However:
* The US military spending is not actually abnormally high when considered as a percentage of GDP or Government budget.
* There's hypocrisy in only considering the military in raw dollar amounts, but considering health care and social security as a percentage or per capita expense.
* If you also consider social security and healthcare by their raw dollar amounts, you also end up with absurd levels of spending.
* You should be pinning spending for health care, social security, and military to the same per capita or GDP metrics, and only then be objecting to them if they're abnormally high.
* It's unethical to pick and choose what spending you personally object to, and then cherry-pick the method you judge that specific spending by to support your personal decision.
The US is one of the most populous countries with any sort of widespread social welfare program. Those programs scale in cost with population size. There's no reason for military spending to also scale in the same way with population size. You aren't comparing the same things, so stop pretending you are.