History shows that we've never actually been "for democracy" in regards to our foreign policy actions throughout the last century plus. West Germany, Korea, Israel, Vietnam, Africa, Central America, and Kuwait saw American military and/or economic action with an eye towards either protecting our newfound status as the world's chief superpower, staunching the spread of Communism and economic influence from the Soviet Union and China, or securing our own access to another region's raw resources.
We can claim that we took action in all of those cases in order to "protect" or "spread" democracy, but those claim are, for the most part, empty.
I'm all for championing democracy on the international stage. However, the reality that democratically elected governments may not turn a favorable eye towards the United States has kept us firmly in the business of rattling our sabers rather than truly trying to clear the way for democracy. You can look to any number of governments we've had a hand in overthrowing as proof.