In perspective: https://us.wikibudgets.org/w/united-states-budget-2016

The things you've listed are only around 25% of the budget. You're engaged in some serious cherry picking.

Here's some things you "overlooked"

Mandatory spending: $2.841 trillion (this includes the following)

Social Security: $1.102 trillion

Medicare: $679 billion

Medicaid: $418 billion

The military budget isn't a whipping boy to just cut into every time you need money for something else. It's a priority for a lot of people in the US, whether you agree with them or not. If something like increasing the FAA budget is actually important, the metric to go by should be, "am I willing to cut social security and healthcare to pay for this?" Because that's what the government is actually spending money on, and that's where it would have to come from.