What I believe is actually happening is that TikTok debunks a lot of Hasbara talking points about the Israeli occupation of palestine (because people can see the violence with their own eyes), but then people are not educated further about the nuances of Zionism and Judaism, the different political movements within Israel like Gush Emunim and how they are not related to Judaism at large.
Because Israel has so successfully conflated Zionism (a political movement) with Judaism (a religious one), it increases the possibility that when westerners stop supporting Israel they can adopt antisemitic viewpoints.
That is very definately not a given. There are many, a majority I hope, of "westerners" who oppose the actions of the state of Israel without becoming anti semetic