It is now that these two communities must understand how interdependent they are. When one community is attacked, the other is next in line. The hatred of Muslims in Europe is the same hatred that Jews have experienced for the last few centuries. When Jews perpetrate islamaphobic actions, they are creating an atmosphere in which anti-Semitism thrives and vice versa.
Though Russia has trumpeted its goal of fighting fascism more or less continuously since the Second World War, many in Europe have assumed such an ideology to be definitively outmoded. Today, the West must figure out how to speak to disenfranchised citizens in a meaningful way, to show them that dysfunctional democracies can be reformed, and that directing political frustration at society's most vulnerable members is never a constructive way forward.