I don't necessarily agree with some of the editorializing, but it's good to point out errors coming from BOTH sides.
TDF caveats:
A. Regarding "machine guns" in Pro-Gun Lie #3:
1. To say they are "banned" is a matter of perspective, given the 1986 Hughes Amendment freeze on civilian-ownable ones, but he makes a severe point.
2. See TDF 10 for an historical perspective on full auto and 2A.
3. A better lie to expose would have been the libertarian/individualist distortion of "resistance to tyranny" and the 2A "militia. See TDF 12 and TDF 26 respectively.
B. The AR15 was originally designed as civilian hunting rifle. (He should know this.)
C. He needs to work on parsing and couching his phrasing. He needs to learn about Heller's "M16s and the like" phrase and be more narrowly tailored in his legitimate comparison of the AR15 and M16.
And of course, I must remind the reader of TDF's view of a better alternative for the civilian 2A Militia:
TDF INDEX: Cats, Guns, and National Security: THE DAILY FUDD index. https://catsgunsandnationalsecurity.blogspot.com/2021/03/the-daily-fudd-index.html