"A well-regulated militia..."
It has been explained- I'm guessing- thousands of times. They don't understand because understanding doesn't fit their agenda.
But, I'll explain again so that there will be yet another place to read it.
"Well regulated" doesn't mean what anti-liberty bigots want it to mean. It means "fine-tuned". "Practiced".
And, of course, "militia" meant all males between the ages of... well, that doesn't matter since I hope America is past the ageism and sexism of the past. Now, the militia is EVERYONE capable (not necessarily enthusiastic about) holding a gun and using it in defense. It is NOT the "National Guard", or the Marines. It is YOU and ME.
So, get out there and fine-tune your skills, because YOU are the one the Second Amendment is talking about being well-practiced in the skill of tyrant shooting.
And, it doesn't matter at all whether the Second Amendment gets repealed or legislated away (which happened way back in 1934)- the right to own and to carry defensive weaponry existed long before the first government was dreamed up by the first control-crazy pervert, and it can not be abolished by any State, ever. Not now, and not in the distant future. Suck it, anti-liberty bigots.