Read up on the Molotov-Ribbentrop Pact. They agreed to divide Poland, invaded together, and also divided the rest of eastern Europe and agreed not to attack each other. Up to the point of the Nazi breach of that pact, they had both been aggressors in WW2.
By “the country that started WW2”, do you mean Germany or Russia? Because the USSR was also one of the initial aggressors of WW2. They invaded Poland together, divided eastern Europe between the USSR and Nazi Germany, invaded the Baltics and Finland. The USSR and Nazi Germany were basically allies until Hitler betrayed Stalin and invaded.
Way to advertise what side she’s really on.
So a Jewish women protesting against genocide was harassed by a racist mob chanting pro-genocidal slogans.