The Constitution's 2nd Amendment that has a predicate clause regarding the "necessity of a well-regulated militia".

I can assure you that Chicago gangs are not members OF a militia, let alone a "well-regulated" one.

And, quite frankly, the same holds true for about 99.999% of all US gun owners.

The Constitution doesn't need to be changed on this issue. It needs to be read in full, and not have such a relevant part ignored.

And, now back to our regularly scheduled topic ...