In a long letter on his Facebook page Thursday, Zuckerberg lamented the rise of isolationism and the backlash against globalization. When Facebook launched in 2004 supporting a more connected, global community was not controversial, he wrote.
"Yet now, across the world there are people left behind by globalization, and movements for withdrawing from global connection," wrote Zuckerberg. "There are questions about whether we can make a global community that works for everyone, and whether the path ahead is to connect more or reverse course."
Facebook and the wider tech community have been reeling since the election of President Donald Trump, which seemed to underline just how out of touch Silicon Valley has been with the rest of the U.S. There's growing concern that Trumpian policies that emphasize protectionism and prioritize old technology over new will precipitate a backlash against the tech companies themselves.
The anti-globalization movement has taken hold in other countries as well, with the U.K. voting to withdraw from the European Union and rightist Marine LePen showing a strong chance of becoming France's next president.