Also I, personally, already use Linux (and cycle for that matter). People assuming this is about me are missing the point utterly. I have privilege (time, energy, education, a safe living space) that means I can do the more complicated thing. Not everyone does.
@afewbugs As much as I agree with your point that not everyone has the freedom to invest time and energy in switching, I'd say the best solution isn't accusing each other of being either privileged or unwilling to make the change. We should rather be supportive to people willing to switch, and understand people who cannot (maybe, even, use that knowledge to ease their path to an alternative in the future).
Fighting each other off benefits nobody, except possibly Microsoft, in this instance.