Please show us the links to this or present the evidence that Lott has been discredited, unlike his gun control counterpart, Bellisailes (sp.) who was outed as a complete fraud.
What is irrelevant about demonstrating the comparitive risks associated with gun ownership vs. other human activities? If my chance of being harmed by one activity is so low, compared to other risks I take, then there is little reason to fear this activity. Removing this fact removes logic from the equation, so I do understand why the gun control crowd wishes to deny the comparitive risk idea.
But you have also removed the protection people have against other crimes, as demonstrated in areas where gun possession has become outlawed. So you again focus on one factor while rejecting reality. Demonstrating statistical relationships focuses too much attention on small numbers of variables and discards external effects.
The reality is that man has the right to self-defense, through reasonable means, guns being one of them. Those who wish to deny gun ownership wish to deny man his rights, thus they are threats to freedom.