I'm pretty sure I understand your argument fine. Allow me to attempt a summary:
The original graphic shows that driving is less dangerous now than ever before. However, it does not take into account the prevalence of driving, which is also higher. Therefore, the original graphic is "misleading", because "traffic fatalities" is the combination of the danger of driving and its prevalence.
Given this current understanding of your point, my only argument now is that I believe that is an uncharitable view of the original post. I argue this because the view is entirely based on that singular interpretation of "war on traffic fatalities". A charitable approach is entirely based on attempting to view an argument with suspension of your own beliefs and interpretations in order to understand the other party's. Through such, common understanding can be worked towards.
I'm also sorry that you feel that I have been uncharitable to you. I honestly do believe your argument is entirely centered around the semantics of "war on traffic fatalities". The information you provided in your graphic is very good, and the point you are making is not wrong. I didn't have any issues at all until your response to cbr's original post, which is where I feel you began arguing semantics over content. I feel this way because cbr was also not wrong, and if anything was an equally good summary as what I stated above. And yet you still seemed to take an issue with it.