Obviously faulty logic. This isn't a zero-sum game. In fact, the whole point is to increase our combined combat power.

For too long European NATO countries have kept token militaries lacking any substantial combat power. They have centered their national defense strategies around holding off Russia for just long enough for Uncle Sam to swoop in, fight the Russians, and save the day. But the US does not have the combat power to fight both Russia and China. So our total combat power must increase. Should the US bear this increased burden alone? Or should the rest of NATO finally get serious about funding and fielding effective militaries?

European states have been freeloading, and US defense budgets are not going to decrease just because Europe finally starts to take some responsibility for its own defense.