So now what exactly are you saying in your original meme? If people do the killing, then why blame "gun violence?"
Is the primal cause of JFK's assassination "gun violence" or a regicidal madman? Which explanation makes more sense: "Look at how that pencil mutilated that word," or "Bobby needs to take more spelling lessons."?
Yes, you have a point that there often needs to be a distinction in crimes based on the weapon used. But you should blame the perpetrators of the crime, and not the weapons.
Full disclosure: Yes I have shot guns. Legally. Into a hill. It was a lot of fun. Why should the government take away my right to pursue happiness based on the senseless acts of morons?