This is slashdot, you are allowed to ask things here...
Aha! No, you want room 12A, next door.
Actually, people have been saying "One day, OS-X will have enough users that malware authors will target it the way they target Windows". That hasn't happened yet, but OS-X marketshare is trending upwards, so it might still happen.
That "more users" argument holds next to zero weight. It's nothing more than a cheap finger-pointing excuse, attempting to deflect the excessive number of vulnerabilities and exploits as being related to the number of users of a particular system. I'm sure we've all heard the expression 'correlation is not causation'. Well, that's probably true in this case too. To anybody who actually think the argument is valid, I would ask this: what kind of person do you think writes viruses?
If you don't think about it too hard, perhaps you will think they want to cause as much damage as possible, which is where the popularity argument comes in. That is true, but this kind of attitude stems from an apparent need to prove their skills to themselves and to others. Wouldn't it be reasonable, then, to say that this type of person would want to be able to say "look at me, I made the first really widespread severely destructive Mac/Linux/BSD/ virus ever!". Now wouldn't that be something!
Little do they know I've been using Mojave for months!