http://www.kaspersky.com/about/news/virus/2014/Number-of-the-week-list-of-malicious-Android-apps-hits-10-million
So how many of these malicious apps affect people who haven't rooted their handsets?
If the user has checked the little box to allow installation from unknown sources, how many of these apps have broken out of the per-app sandbox?
I'm reckoning that number will be zero, just like I said. Even if you do get something dodgy, you uninstall it. Just like I said.
Head-in-sand? Hardly. Broken handsets more likely to be infected. Well, I think that falls under "no shit, Sherlock".
Now, as I said (again): I've yet to see anything that affects a handset that hasn't had its own security measures broken to "root" it.
When you can find an example of malware that will infect a non-rooted device, and break out of the sandbox, and be unable to be simply uninstalled like any other app, then maybe I'll listen. I just haven't found any.
And Dalvik still isn't Linux.