Your intelligence is so lacking, you make that monkey that peed in his mouth look like Einstein. Type "monkey" and "pee" and "mouth" into YouTube, 'cause I know you have the time.
You reduce the issue of Nazism to one of simply ideas---propaganda, antisemitism, opinions, blah blah blah. That is NOT what makes Nazism one of the most wicked philosophies of our time. The philosophy translated to ACTION, the killing of millions of people just because they were Jewish, gypsy, homosexuals, or dissidents. That is why people are anti-Nazi. Your grandma may be sweet and hardcore, but she is also IGNORANT, as were so many members of the Nazi party who joined to unify Germany but had no idea the mass murder that was being committed in their name.
If you think your lily-white skin makes you superior to everyone else on the planet, think again. Your susceptibility to violent skin cancer, cystic fibrosis, hemochromatosis, autism, and arthritis should give you some "genetic" pause. You think something divine is embedded in your DNA? Buckle up, white boy. Brown-skinned Hebrews got a hot-line to God, while your kind was holed-up worshipping Thor and sacrificing virgins to your deities after having been gang-raped by hordes of white men. Are you proud now? We are only, mercifully, heirs to God's promise because of a humble group of people (Jews, in case you got lost) who gave us our scriptures, and our Lord, in spite of the relentless hatred, spite, and murder we inflict on them constantly. They make up so little of the world's population, but no one has suffered more than they have. Why? Because they are God's people. And people hate God. Why not kill them? Why not kill God? Your grandma never "hurt" anyone? That's wonderful. Her hero, Hitler, murdered and burned the bodies of millions of innocents. She needs to get on her knees. And so do you.