Wars *are* pretty expensive, but sometimes they are required to keep civilization going. Over 10 years the wars you speak of were estimated to cost 650 billion dollars. No matter if it was right or wrong to engage in these wars, please keep in mind your man managed to spend what was spent over 10 year in far less than one year.
*That* is the real problem you *should* be addressing. If you have children or grandchildren, the spend rate by the US government should be more than a little alarming. Your man even said it is unsustainable, yet continues to spend like there is no tomorrow... and at current trillion dollar plus annual burn rates, there will not be.