Ignorant people have always hated the Jews, and used the Jews as scapegoats for their own failings.
I don’t think this is “rising.” I think the societal factors that kept it under wraps are receding.
That’s also a very real possibility.
It’s become more socially acceptable to express it.
You are correct. Anti-Semitism is more or less latent in the West. It did not surprise me to find it so post Oct 07; what I found surprising was how rapidly and broadly it gushed out.