What I have seen is a confusion (perhaps intentional) between anti-semitism, and protesting Israel’s behavior since the Hamas attack in October.
Criticizing Israel’s response is not anti-Semitism- it is literally just criticizing the response.
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.