@BillRM,
You miss the whole points: that's not surprising.
1. We are not the world police.
2. We cannot afford to be the world police.
3. There are many countries in this world with genocide.
4. There are international laws against attacking sovereign countries.
5. Starting the Iraqi was was illegal and inhumane. One of the biggest world demonstration against this war happened when Bush informed the world about his plan to start his war. (Bush said he doesn't look at polls to make his decisions.)
6. It cost our country many unnecessary lives and expense. The cost of which many families lost loved ones, and only increased our national debt (that we cannot afford).
7. You have no concept of humanity. Killing is never justified to "save" others from getting killed. In our killing, we always kill innocent people; it's called collateral damage. A nice sanitary military term used often.