You are playing word games with your claim that "no Mac viruses are in the wild, prove it". You are saying that because it's the only type of threat that you can offer evidence for that backs your position.
No, I'm saying that there are no Mac viruses because it's true, and viruses are the only type of malware that require an antivirus/anti-malware app as a defense, since a virus can spread to other computers without the user's knowledge or action. All other Mac malware infection requires the user's action to infect. That is a significant difference.
It's become a long time man made marketing term to describe software that protects against a range of computer threats.
That's the problem. It's a marketing term, not a factual technical term, and it is false and misleading, propagated by the companies that want to sell antivirus software. "Malware" is the umbrella term that encompasses viruses, Trojans, worms, rootkits, etc. A "virus" is one particular type of malware that can spread and infect without users doing anything, which is why software is
required to detect and block it. Trojans, on the other hand, can be avoided by being careful about what you install. A Trojan does not install itself and does not spread to infect other computers without user action.
The concept of a virus may be based on biological concepts of how an infection is spread but just like the biological world both a virus which takes over cells to spread or bacteria or fungal infections or toxins can all make you sick.
Exactly. That is why antivirus software is required as a defense for a virus. Unlike a virus, however, other Mac malware is more like food poisoning: you get it because you ate something that you shouldn't. It is not contagious and cannot spread to others. You can avoid it by being careful about what you eat. You don't need medicine to ward off food poisoning; just watch what you eat.
The case is less clear for AV apps at this point. If and when a Mac virus occurs in the wild, then obviously an AV app won't at first protect against it ....but you can bet it will do within a few hours.
More like days or weeks, based on history. The Flashback Trojan was in the wild with infections being reported for several days before antivirus apps were updated to detect it. By contrast, none of those practicing safe computing (being careful about the source of the apps you install) were affected by it.
People WANT to be protected from ALL of it.
And not one antivirus/anti-malware app will protect against all of Mac malware in the wild, but safe computing protects against all of it.
It is misleading to tell people they can install an antivirus app and then they don't have to worry about malware or "viruses" on a Mac. That is simply not true. Even running such an app, their Mac can be infected if they install a Trojan that the app doesn't detect. If you want to keep your Mac safe from malware, you can't be lazy and careless: you need to practice safe computing.