You and I share Reagan as hero. Reagan put a global arms race into overdrive during his two terms. It did wonders for the world.
China and Russia have weak economies to match us.
Why don't you develop some Reagan optimism?
Russia is selling missiles because it wants CASH. It's a poor country. Putin admitted that his military is in too bad a shape to even respond to the terrorists who killed the kids in Beslan. They have no hope of opposing us.
China would be arming themselves whether we took action or not. They have their own goal of being a world power, regardless of what we do. Weakness on our part would merely mean that they would expect no check on their actions. If you want to maintain a balance of power, then we are doing the right thing in making China think twice about any action they may want to take.
Our best course of action is to show our enemies that we take being attacked seriously and we will fight until the threat is destroyed. Not until we have taught them a good lesson, but until the threat is eliminated. The lesson from history is that if we don't destroy them, we'll have to fight them again, later. Cross reference North Korea, the Barbary Pirates (as a counter-example), and yes, even Saddam Hussein, who has attempted to kill a former president, who routinely tried to kill our pilots, and who provided refuge and financing for terrorists.
It comes down to that old saying: You can start the fight,but I'll finish it.
We haven't finished the fight with Islamist dictators and terrorists while there are any still breathing.
If the next set of bad guys learns the lesson, great. If not, then we'll destroy them, too.
And no, I don't feel bad that we are the greatest power in the world, capable of doing whatever we want whenever we want. I feel proud of it.
We are using our might to destroy evil. That's the way it should be.