To add on there is a documentary on Netflix called the circle of evil that dramatically shows the way hitler came to power. It’s not just antisemitism in Europe it’s a party of echo chambers with anti semitism and Hitler was the one most radical in his speeches while being highly influential. You don’t convince a country without a good indoctrinating speech about how the Jewish population is ruining everything. Germany just came off WW1 and a lot of bullshit stigma was thrown at the Jewish population because the war torn population stereotyped them as “helping both sides”. A lot of factors that nobody will be capable of recognizing are crucial to Hitlers antisemitism.