Comment by krapp

It went viral on social media, the other conflicts didn't. That's really it. Many people's awareness of the world and the moral weight of what happens there comes directly from social media.

A lot of people were upset about China and the Uyghurs as well, for a while, but not until after it became a thing influencers talked about. And then they stopped caring after social media moved on. Even on HN, where anti-China sentiment is rampant, people no longer seem to mention it.