what I argue
"you argue that we should expect that these same people should not have any trouble going on the web and figuring out which distro of Linux to choose for their applications"
I think you're replying here to something you read somewhere else, if that's what you think I'm arguing. I'm not arguing that willfully ignorant idiots should be expected (where "should" refers to practical likelihoods, not to taking responsibility for onesel) to suddenly start thinking for themselves now and then. I'm arguing that the fact a bunch of people are willfully ignorant idiots does not:
A. preclude large numbers of people switching from MS Windows to other OSes
B. justify their decision
C. make MS Windows any better an option for them than anything else
"Why do people pick Windoze?"
Most of them don't. They mostly get MS Windows handed to them, and don't bother to think about it. Handing them something else would have much the same effect, but with different software replacing MS Windows.