But what's really driving the country's leaders is a very different emotion: profound insecurity.
不过,真正触动这个国家的领导人的其实是因为该国存在的一种截然不同的深刻的不稳定情绪。(感谢d_bubble的指正)
he deplores the notion that America doesn't matter anymore.
他对(对中国而言)美国不再重要的这一观念深表遗憾。
(感谢 深深的红 的指正,之前误将“notion”看做“nation”)