I feel like the way out is global and cultural in nature,
I agree that it starts with a sense of a global community. Instead of people considering themselves a citizen of their homecountry, they need to switch to the mindset of being a citizen of Earth.
We now have the technology to get past the language barrier, so it is more possible to get people together, talking about our future as a species more than anytime in our history.
One thing that could help is some sort of globally available social media, or forum that automatically translate to the language of the reader. Imagine if a Chinese person could post something in Chinese, but English speakers could read and respond in English, and vice versa.