Farmers are not stupid. Read up on petty bourgeoisie and why they tend to support reactionary movements. Hitler too famously found a lot of support in farmers and small businesses. There are very good material reasons to this.
Material reason that they were more blood thirsty and hateful. More wanting to expand German, annex other countries and happy to turn other nations into slaves. They have seen empathy as a weakness, the same some current politicians do.
Also, they gained about nothing and seem themselves as the victims by the end of WWII. (Yes, literally they have seen themsevelves as primary victims of what happened.)
