What it sounds like you're trying to do is sell her on the idea that guns in the general populaces possession is not something to fret over. Well, to me, it sounds like you were taking the wrong approach to get your point across; throwing out random points won't change someone's conviction. That's because if it comes from your (or anyone else's) mouth, it's a lie, and if it comes from her mouth, it must be the truth.
If I were you I would invite her out for ohhhh let's say a "shopping trip". You know her best so you can either surprise her with a stop to the local range, or you can suggest it while you're out and see how she responds. If you can get her to fire a decent number of rounds, phase one is now complete. You've opened her mind up, and, being the informative, responsible owner that you are, you've shown her that a gun in the average person's possession (her own) does not incline them to behave recklessly like Yosemite Sam. I would then, over the course of some time, expose her to bits of media that are self defense friendly (preferably sources that she relates with)- this shows her that the issue really is about sd rather than the guns themselves. To cut it short, keep taking little steps from here. Let me know what you think.
If I were you I would invite her out for ohhhh let's say a "shopping trip". You know her best so you can either surprise her with a stop to the local range, or you can suggest it while you're out and see how she responds. If you can get her to fire a decent number of rounds, phase one is now complete. You've opened her mind up, and, being the informative, responsible owner that you are, you've shown her that a gun in the average person's possession (her own) does not incline them to behave recklessly like Yosemite Sam. I would then, over the course of some time, expose her to bits of media that are self defense friendly (preferably sources that she relates with)- this shows her that the issue really is about sd rather than the guns themselves. To cut it short, keep taking little steps from here. Let me know what you think.