You'll find that your idea of "rights" disappears quite quickly as soon as any functioning society breaks down.
My "idea" of rights exists at any scale and under any circumstances. That's the entire point. Irrational people do indeed look to take advantage circumstances in which they feel willing to take the chance that their use of violence will go unchallenged because of unpleasant or unexpected circumstances. Which doesn't change the fact that they lose their claim to life when they deny you yours. That's the right you naturally have: to use (or have used on your behalf) the violence necessary to defend your life. Why? Because rational people don't kill other people except in self defense. Those who initiate the violence waive their rights to live in peace.
You're confusing having a right with happening to have the power to defend it at some particular time. These are not the same thing.