IMHO.....
Survival in such a situation is highly dependant on your mindset/atitude. Next would come your skills.
IMO YES it could happen here in the U.S., or in any country. As has been stated it's a gradual thing. Starts out mild but keeps escalating. Many in Germany either were truly unaware or prefered to ignore it. Was little or even nothing they could do. They just didn't have the means. They feared they would be included IMHO, and had no means of defence or attack. A part of "Schindlers List" ( ya ya speeling
) that was not in the film but was reported by his widow was he also armed those people. He armed them and the Nazi's came for them right at the last. Those people were ready and defended themselves, and the Nazi's also under attack by the allies went elsewhere. How it would actually turn out is another thing.
Just watching the activivties of the protestors at the RNC in N.Y. gives me a chill. Some of the protestors have already made violent attacks on people and police officers. Keep finding myself waiting for the other shoe to drop so to speak.
"Beware of stupid people in large numbers"
Yep and at different times in all our lives we can probably be consider as numbered among those people.