You thought and heard wrong. Only the Apple haters say that bogus crap. Apple fans are often over-amped but they're generally not delusional, and they know that everybody makes mistakes, including Apple.
It cracks me up no end, that the folks who spend the most time spreading the story that Apple products are flawless are the very ones who hate Apple. You'd think they'd have learned by now, but apparently not. You're increasing Apple's profit margin every time you spout that silliness. (Not that I care, I don't own stock in any of these damn tech companies.)
Actually, you are wrong.
I know of several Apple fanboys who claim Apple products are not vulnerable to viruses yada yada yada. Over the years, I have known many of them, and they were all Apple fans, contrary to your claims.
Nope applebots have repeatedly told that lie for over 10 years.