I think referencing the Branch Davidians is a poor support to your argument. In fact, I think it strengthens what I said. Let's look at the facts of what happened.
The ATF was attempting to execute a search warrant obtained on the basis that these people possessed firearms and/or explosives that they were prohibited from having by federal law. I'm going to operate on the wild assumption that a federal judge (or other proper legal authority)issued a search warrant based on probable cause that they were breaking the fucking law.
Any reasonable individual who was not breaking the law would have consented to the search. In the event that the police found nothing and they felt their civil liberties had been infringed, they could have contacted an attorney and attempted to litigate the matter to their hearts' content.
Instead, they engaged in a military standoff with a law enforcement agency and guess what? They lost. Like I said, common sense if nothing else should urge you not to engage in a military standoff with law enforcement.
When is it okay to shoot a cop? I will tell you when. When you're not breaking the law and you reasonably believe that your life is in jeopardy if you do not kill him first. If police execute an entry into my home, legal or illegally, and attempt to take me into custody, I'm simply going to cooperate. Why? Well for one because I don't think my belief that an entry into my home is unlawful is a good enough reason to kill another human being. For two, I kinda like living and I'd rather fight for my beliefs in the courtroom and not get zerged by police with better weaponry.
Now if the cops showed up at my house for no good reason and started shooting, yea, I'm gonna shoot back because I would have no other alternative if I wanted to attempt to survive.
Similarly, if as in the Ukraine, I chose to stand up to my government through my right to assemble and the government agents used force against me then yea, I believe I would have "the right" to fight back. Even then though, it would be a pretty foolish option. You'd be better off trying to send your message through legal non-violent protest. Violence only begets violence.
When Sonya says connect the dots what I believe he's saying is that your random assortment of ideas don't seem to have any meaningful correlation. For example, police officers entering a home on an allegedly illegal basis is not comparable to "tyranny" as that term is used when describing fascist regimes from prior points in history such as Hitler and Stalin, nor are either of these events valid substance for the argument that the "constitution is fragile" which is supported by your reference to Japanese-American detainment that happened 60+ years ago.... On that point, I would tell that one guy to learn the law a little better. If a law enforcement officer has reasonable cause to believe that someone inside a home is in immediate danger (like domestic violence for example), he can absolutely enter your home without a warrant on that premise.