I support the 2nd amendment 100%. I own and carry firearms. I have used my sidearm to protect the life of more than one person. The police could care less about a T individual in the south. The Supreme Court has also ruled that the police are not there to protect you (thus why many police forces have removed `To protect' from their cars and other items).
I take my responsibility very seriously and have studied the issues. When it was time to carry in public I was required (and would have done so even if it was not required) to go through a 12 hour course given by two police officers.
I can make a one use, single shot firearm out of a few newspapers, a magazine, a rubberband, and a nail. Said setup would even tear up a bullet proof vest in a tight situation.
Criminals are criminals. They break the law. Cops cannot be everywhere, which is a good thing because we are not yet a police state.
There have been situations in which armed citizens have risen up against corrupt, local politicians in the modern era. One that I think should be made into a movie centered around a few returning WWII soldiers to find out that the town was being strong armed for everything, including who could and could not vote. They broke into the armory, seized weapons, and took down the local gov't and then brought in the feds. There was another similar situation even more recent but I am not very familiar with that one at all.
The United States of America will not last forever. We are already sliding from a Representative Republic to a Democracy (mob rule) and from there it is just a quick jump to having a dictator. This will happen, eventually. Unlikely to happen in our lifetimes though.
Firearm stories are sensationalised in the media. Doctors kill more in accidents every year.
Criminals will always find a way to get what they need to continue their chosen career path. Suicidal people will always find a way to kill themselves. Constitutional freedoms should never be curtailed.
Oh and I dislike the overuse of the term Nazi. Once the govt starts rounding up citizens according to race in an effort to allow the United States to fulfill its destiny, we'll talk.
Wiki entry on Nazis, check out the key elements including environmental protections. I work for an environmental govt agency but I do not subscribe to the National Socialist ideology.