Allow me to clarify. This is kind've a ramble and I
am stretching different related thoughts together.
I live in Texas now. Before moving here, I lived in California. There's a stark difference of opinion about guns between the states. In California, guns are... well they're definitely not part of the culture there.
I never fired a gun until I was 23 years old and hung out with a friend-in-law at their home away from the city. A few years later I bought my first gun and went to the range. The people at the range were somewhat reserved, somewhat mocking about lack of experience. They definitely didn't appreciate people who didn't know all the rules like the back of their hand. That definitely doesn't encourage someone to learn how to handle a gun. Interesting, yes?
So, being in Texas, where guns are part of the culture in many places, it's also interesting to find people who've never fired a gun. It's scary to find people who think that the only people who should own a gun are the armed forces.
In my experience, that latter is a statement generally comes from people who are naive about US history and their government; or they have been emotionally damaged by guns which I can respect even if I disagree.
However, someone who's not been around guns, doesn't know the difference between various "basic" types of guns (automatic, semi-automatic, manual; rifle, shotgun, pistol; etc) makes me feel threatened when they start talking about what you can or can not do with a gun. The information they talk about is usually wrong and they're not usually willing to listen to corrections. I work with scientists; someone who isn't trained and isn't willing to be trained is a threat to science.
Finally, someone who talks about something with no training or experience is worse than someone who does. Imagine a computer user who's not trained to write software but talks as if databases are "the worst". Sure you could ignore them. But remember that that person can also talk to more people than just you. They could be spewing the same nonsense to their government representatives. If the representative or political leader doesn't have two brain cells (which seems common these days), they're just as likely to write bad legislation or policy about computers^H^H^H^H^H^H^H^H^Hguns.
Having lived in both California and Texas I can definitely say that I've seen many opinions first-hand. There's no "right" opinion. There's definitely wrong opinions though.