Where does the Constitution say the government has to keep people healthy? Safe, yes.  Healthy?  Where are you reading that?  

As for what is necessary for defense, defense as a percentage of the federal budget has been declining since 2010, and is headed for historic lows. How does federal spending turns the country into a "sadistic war-maker"?  Leaders do, most recently the Obama Administration's murderous drones, & disastrous toppling of Libya, done with the encouragement of Obama's first Sec of State. You remember her - Hillary Clinton?  Did you vote for her?  Because she was quite the hawk, voting for the war in Iraq, pushing us into Libya (I'll never forget her laughter at the news that Khadaffi had been tortured and murdered).  https://www.nytimes.com/2016/04/24/magazine/how-hillary-clinton-became-a-hawk.html

As for caring about life, you are then pro-life & against the destruction of > 1 million babies a year. 908,000 known in 2015; not counting 16 states that don't report