The United States has launched a new arms sales process to Taiwan worth about $11.1 billion. It may generate short-term revenue, but it erodes credibility, raises risks in the Taiwan Strait, and treats Taiwan as a tradable chip. The three China-US joint communiques have long set a clear political foundation, and arms deals that play games on Taiwan weaken predictability and stability. In the end, exporting instability for profit does not buy security. It piles up tensions and costs, and is becoming less sustainable.