I don't know if this point has been brought up before, but I doubt the claims of "anti-Semitism" on the rise being true. Rather, they just conflate any anti-Israeli protesters as being "anti-Semites" regardless of whether or not they actually hate Jews.
I guarantee there are plenty of lefty protestors labeled "anti-Semites" that are pro-Jew in every way except for having Israel as an ethnostate. It is just that they take the Ben Shapiro definition of "anti-Semitism" and run with it.
@37712 I made a second point that is a factor in a later comment: the Muslims. I am quite sure they would be large part of the "anti-Semitism." And it is understandable, considering how many wars the US wages on behalf of Israel.