There was a case in Texas recently where some men were stopped by police for carrying real guns; rifles slung over their shoulders. Had the police driven up, and within 5 or 10 seconds had shot and killed them, then would you be saying that the men in question needed to anticipate the potential consequences?
There is nothing wrong with openn carry.
As a conservative I believe in responsibility, and when something bad happens to me, I worry about what I could have done or can do in the future to make sure it doesn't happen again. And when my children want to do things that might lead them into harm, I stop them.
You can go traipsing through life expecting everyone you encounter to do everything nicely and correct.
I don't have that kind of faith in my fellow man.