I consider fire-arms usage a martial art, by definition. Though I dislike the 'art' idea in MA at all and tend to use the term 'combatives' or 'close quarters combat training / tactical engagement training' (CQBT / TacEng Training). Whatever you call it though, it amounts to the same thing: relatively close range encounters with opponents who mean to cause serious bodily harm or death to you or others you intend to protect. In this context it makes sense to train with guns, sticks, knives, swords, chairs, ashtrays... you get my point, I am sure ;Ā¬)
So, in short, you are far from alone in your view that fire-arms complement unarmed techniques and also you probably already realize that there is a whole more than either, such as the overal tactical skills and situational awareness development.
Many here think as you do, myself included and to my knowledge, Tgace, whom I seem to keep having long discussions with on topics related to this sort of thing.
For a laugh:
"If someone comes up to me and threatens me I am just going to pull my gun and shoot the [expletive] in the face."
"No matter how well trained someone is there is no way they'd be able to shoot me with the level of [Martial Art Training] I have now."
Both real quotes I had said to me by people I am acquainted with. So yes, there is an awful lot of ignorant people out there not only risking their own lives but potentially that of others by perpetuating such myths. Needless to say I disabused both of their false ideas. Sadly the second guy still did not want to believe and continues to maintain his position. The first guy trains in a martial art now.
John