Israel's bombardment of Gaza provoked a
big
increase in antisemitism in Britain and France.
I almost never experienced antisemitism while growing up in the US.
Horror over Nazi genocide made antisemitism something to shun a person
for, which suppressed it to a low level.
Israel's crime in Gaza does not justify bigotry or hatred against
Jews. These are two different issues. Indeed, many US Jews (and
people of Jewish ethnic background, such as me) condemned the
bombardment of Gaza and campaign against Israel's occupation of
Palestine.
Israel itself has done its best to link the two issues, through
decades of falsely claiming that those who condemn Israel's occupation
policies are "antisemitic". The link can't help running both ways,
thus contributing to the resurgence of real antisemitism.