Not an american myself, and I've always disliked the excessive gun culture and pro gun lobbying in the USA... but damn, these pasts months, that second amendment is suddenly looking extremely useful
Even without a legal framework, it happens sometimes, through various means. Ireland used to be an integral part of the UK, say, Finland used to be part of (imperial) Russia, and the Baltic states were part of the Soviet Union.
And it is always like that. The ones who benefit the most from armed society and those who have the least inhibitions to harm.