All democracies before the current era began as revolutions. Roman plebeians were well armed enough that the state could never become too abusive towards them. English democracy, and the entire modern idea of constitutional democracy itself, came about because the British public happened to be well armed enough with longbows, originally intended for times of war, that they could resist the tyrannical acts of the state and the professional military that it commanded. Some of the most peaceful and healthiest democracies in the world are also the most heavily armed: look at Switzerland for an example. The entire point of widespread civilian ownership of military weapons is that they can serve as a deterrent so that no tyrants, whether in the government or another private faction, can ever wield unassailable power over the masses, and that the weapons themselves never have to be used. Civil institutions can be captured over time by corrupt interests, but it's quite difficult to capture an empowered public.
Your prior comment spoke of "deter and safeguard against tyrants". No you argue based on the "beginnings" of democracies. These are different things.
I'd continue to argue that widespread gun ownership within democratic societies is detrimental, not beneficial for their continued existence.
As for "starting" a democracy, there are certainly those that came about by violent means. But more often than not, the capacity for violence has nothing to do with the availability of arms in civilian hands. Much more relevant is the organizational capacity of revolutionaries and their support within the armed forces (or from actors that could provide well-trained and armed men prior to the widespread use of standing militaries).
>All democracies before the current era began as revolutions.
[citation needed]
>Roman plebeians were well armed enough that the state could never become too abusive towards them.
The plebeians certainly played a part, but probably not because they were "well armed". Legitimacy is a real and important thing in politics and it derives from the willing support of your constituencies.
I would also question that plebeians were particularly well armed. Plebeians were (for the most part) not allowed to serve in the army, while higher social classes were required to and also required to provide their own weapons. Therefore it is likely that the higher social classes were both quite well trained, had combat experience and weapons and armor at their disposal, while most plebs likely hat little in the way of arms and/or training and experience.
>the British public happened to be well armed enough with longbows, originally intended for times of war, that they could resist the tyrannical acts of the state and the professional military that it commanded.
Not sure where you draw the line for democracy being established in Britain, but it would be hard to argue that this was before the British civil war starting in 1642. By then longbows were mostly outdated military technology and battles were fought with "pike and shot", which required quite a lot of training and substantial capital to be effective (and adequately supplied). Neither pikes, nor matchlock firearms were particularly widespread in civilian hands.
>Some of the most peaceful and healthiest democracies in the world are also the most heavily armed: look at Switzerland for an example.
Swiss reservists haven't had their service rifles at home for a couple of decades now. The justification for the Swiss system was also always based on repelling outside threads. The practice of keeping service rifles at home produced significant problems (suicides and gun violence) so it was abolished.
>The entire point of widespread civilian ownership of military weapons is that they can serve as a deterrent so that no tyrants, whether in the government or another private faction, can ever wield unassailable power over the masses
Which is dumb, because tyrants don't care how many people they have to kill. And having a lot of weapons in civilian hands gives them one more lever to kill their internal enemies. Private militias are an essential aspect of most genocides in the modern era (see Rwanda, Serbia, etc.).
>Civil institutions can be captured over time by corrupt interests, but it's quite difficult to capture an empowered public.
It is very hard to corrupt well-established institutions (that is the whole point of institutions), while it can be quite easy (in the right circumstances) to get critical shares of a population to support a murderous ideology.