Here's some more numbers:
murders (includes gang violence, mass shootings, and all gun murders): 17,000
car accidents: 33,000
suicide (including guns): 45,000
alcohol: 88,000
smoking related causes: 480,000
Let's be honest, if those 480K Americans were shot to death instead of dying from smoking, the country would probably be under martial law and the feds would probably put strict regulations on the ownership of firearms. But since tobacco products aren't directly used to kill, the only regulation on the customer is being over 18 (higher in some states). Meanwhile for guns, in addition to being over 18, you also need to be a legal resident and you will be disqualified if you have a record showing a conviction for a crime which is punishable by a year or more (including nonviolent crimes such as drug possession) or anything domestic violence (even if it's a misdemeanor). You will also be disqualified if you have been dishonorably discharged from the military, are a fugitive from justice, or if you gave up your citizenship. And those are just federal regulations. Some states have even more backround checks (recently, California has begun regulation on ammo).