IMO, the thought people losing it just when some open carry is just due to the fact that people are not used to it. The best example I will post is, thongs/G-strings type bikinis. When women started wearing these at the beach when it was first introduced, many people were offended. Granted it was the older crowd (and women who will never look as good rockin the same bikini) afraid of change. Go to the beach now, common sight to see. So IMO, if it is a common sight to see, it eventually becomes the norm.
Another note, I would bet mostly young men and some older men never opposed both, open carry and thongs/G-string bikinis.