Can you prove this without any weasel tricks like claiming that anyone who prefers Windows is ignorant? 
So we're talking about business owners now and not IT professionals? My comment was about people who are forced to follow the rules of a client or employer, not people who make their own rules. If you have the option to choose your favorite tool, more power to you. Most of us are not so lucky.
Predictably, you missed the point and tried to twist it into a straw man for your Windows bashing.
Tom, I know what I see, and that is that people with strong technical knowledge, people who I have a lot of respect for, think that way. And as a business owner, I know what I'd run. As an IT guy I know what I'd recommend (if I was still in IT). Yep, I've got the option, and I took it.
As to the Strawmen, if Windows is as bad as I think it is, why shouldn't I tell people? From a Christian viewpoint I would be totally wrong not to "pass the word."
Yes, intolerant. You cannot be right about an opinion, because opinions are subjective. In your opinion Microsoft products are garbage, and you have a few bullet points that justify your opinion. Not respecting different opinions, like those of the people who prefer Windows, is intolerant.
It's not an opinion. Can you refute that:
1) Windows is the most virus prone operating system
2) Windows is the most insecure operating system
3) Windows requires more maintenance than any other operating system
4) Windows is the only operating system that suffers from Spyware
5) Windows is the only operating system that is produced by Microsoft
Forget about arguments about numbers, popularity, and all that junk. Can you refute any of the arguments above (let's forget number 5, it was there only to make a point).