DNF. This review is on behalf of my husband, who doesn't have Goodreads. He listened to it but was unable to get past the first chapter due to the author's approach. I still feel that warrants a review because it affected him to such an extent that I wanted to make other readers aware. What follows is a combination of what he told me about what he read here and what I'm aware of based on other experience with this author and his views on guns.
If you, like my husband, like to occasionally listen to points of view with which you disagree in order to potentially have your opinions changed and horizons widened, this book is not the one for you. Despite that sort of person being the target demographic, the author does nothing but insult and dehumanize anyone he considers to be in the "them" group.
This opposing-sides worldview is damaging and unfair and it's clear that's how the author views the world. This outlook does a disservice to everyone and strips away your capacity to recognize nuance and engage more effectively. The too-frequent use of "us" and "them" -type language became so apparent after a while that my husband decided to count them: he got over 100 instances in less than one chapter (and that was without counting what he'd already read). This sort of intentional emotion-inflaming makes it very hard for those "others" to want to hear you out and lower their guard or otherwise feel inclined to be open to having their views changed.
For the record, my husband supports the ability to own and use a firearm, while also making sure that as many people as possible are able to use them but in a safe way. This book horrified him. Just having any sort of support for reasonable steps and limits is a no-no for the author, who seems to think that any short waiting period, extra step of taking a safety class, or getting a concealed carry permit is somehow a burden or infringement. In reality, those "limits" have been shown to save lives and maintain access to that right so that more people are able to exercise it without it backfiring as much as it could otherwise.
Supporting the Second Amendment isn't good enough; you have to do it the author's way or he thinks you're wrong and bad. It seems like nothing but unfettered access for everyone and disregard for the statistics he doesn't like will ever be good enough for the author. The author also made it extremely clear that he believes gun owners hate people like my husband and would be happier if he were dead. (That's not the type of attitude I want gun owners to have; putting firearms in the hands of those who wish others dead based on misunderstandings of their ideology is not a trustworthy or responsible decision.)
In addition to most of the first chapter, this assessment is also based on the comments he has made in other forums, which were often given in dismissive, snarky, or I-know-better-than-you immature language that continues his excellent ability to be a complete turn-off to those he wishes to convince and undermine arguments for his own side.
Somehow the author believes he is actually being effectively persuasive; he doesn't realize he's just pandering to a pre-existing base of rabid SA fans who don't recognize his puffed-up sense of self-importance and inflated view of his own understanding for the argumentative performance it is. "Wit and scorn," as another reviewer describes how he writes about "anti-gunners," is not language that will win them over to your side. It's clear that he hasn't taken the time to truly understand the "other side," otherwise he might actually care to make his points in a way that could actually reach them without vilifying them.
Similarly, the description of the book on Goodreads is very opinion-heavy without trying to be diplomatic at all, using extreme words like "insanity," "blasts," "crazed," and others that attack views different from his. It's his way or the highway. He thinks he's right about everything and he intends to prove it. Just because you have 30 years of experience with guns in various circumstances doesn't mean you're using, applying, or understanding that experience well, nor does it mean it applies to every situation involving guns. A true expert in their field would recognize they don't know everything and wouldn't be so quick to dismiss or attempt to invalidate others experiences with that subject, but this self-proclaimed "expert" does just that.
If there were actual good points made later in the book, it's too bad the author made the reading experience such a hostile one that his target audience would never make it there, be able to take it seriously, or find themselves able to be persuaded.
If you, like my husband, are also a reasonable open-minded person curious about this viewpoint but you also value your mental health and want to engage with someone who argues for that side in good faith, find an author who can handle this subject with maturity rather than mockery, bad writing, and ill intent. Good thing Audible lets you return books in certain situations.