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.
What is also true is that you can clearly see Israel conducting a genocide live, while every news outlet in the west denies it or justifies it.
I am not talking about fake news, I am talking about citizen journalists, footage of children who have been pulled out of rubble. Footage of leaflets dropped on a column of refugees. The civilian death tolls that the US confirms themselves. The harder Israel denies their atrocities, the stronger the backlash becomes when people see the truth with their own eyes.
Israel's far right and Netanyahu bear a huge amount of blame for the rise of antisemitism, because they point to these atrocities and say "this is what Jewish people globally stand for".
https://nymag.com/intelligencer/article/bisan-plestia-motaz-...
Yes, I make sure that I have verified that what I am seeing is real. I immediately do a fact check. I read Haaretz because if Israeli media is confirming it then it is undoubtedly real.
So many people ask "how could people have just let this happen" with respect to the Holocaust. This is how. They didn't want to believe it. Or they justified it. Or they were more worried about other things.
Maybe you should re-examine your biases.