Probably anyone who posted a "dislike" is either jealous or an Anti Gun Whacko.
There were some excellent points Mike Miller made in the video, especially how each gunsmith had to make one barrel and lock, but afterwards normally bought them from someone else.
This is the first time I have heard of a Gunsmith refusing to do Militia duty because if he got hurt, he could not work. However, I have run across at least two or three times where period Gunsmiths were excused from militia duty, not only because they were the only ones who could repair guns, but they normally fixed a plethora of other items. I've seen a few period gunsmith account books and they went months or more without "building/stocking" an entire rifle or fowler. They did all kinds of gun repairs, but also fixed pots, pans, tools, and made all sorts of items for other tradesmen or domestic purposes - as the people needed.
I have only one slight and respectful constructive criticism. Mike was a little cloudy about a Journeyman showing his "Master's Piece" to a Guild and be accepted, before he became a Master. This is how it was done in Europe, but not in America as there were no formal guilds here, though there might have been informal guilds in some of the larger cities. Upon his completion of his Apprenticeship program, a gunsmith became a Journeyman who may have worked for one or more Masters in their shops for the rest of their lives, or may have moved and set up their own shop. Once they set up their own shop, they were the Master of their shop. Many of the frontier gunsmiths were Journeymen who set up their own shops on the frontier, so they became a Master at that point.
Overall an excellent video and thanks for posting it TFoley!
Gus