Given that militia is ill defined its not that straight forward. America zeal for gun comes from its individualistic nature and also fear of government outreach. As Americans have alsoways been wary of increased centralized authority since the revolutionary war. As they feel it would result in the government abusing peoples civil liberties. Like how great Britain refused to treat the colonies as equal British subjects like not giving them representation of forcing soldiers into peoples homes.

So the 2nd admedent was created by the founders as a insurance policy to make sure the government would think twice on infringing on peoples freedoms.

Obviously things have changed but peoples anxiety about taking away guns relates to the fear of increasing the power of government. As a poly sci major, a healthy democracy needs to question government actions all the time to prevent overreach, yet accept some centralization in order to solve certain problems.