[watwut]

Afaik, Hitler was instrumental in making Nazi party big and popular. They became big due to his speaking abilities. Antisemitism was widespread all around Europe. Germany was not the most antisemitic one - the Jews were running to Germany from Easter Europe.

The nazi party was not the only competitor for power and among those, it was only genocidal by ideology. Germany could end up as military dictatorship - there would be imperialism but it would not be the same. It could end up as actual democratic country too. But, the party that won were Nazi and there, Hitler was the one who made that party big.