LOL
No. they are afraid if they open source the code, they will have 100 exploits/day.
Windows is not opensource.
you can compare linux and *bsd, and you can compare windows and mac. but not linux with windows.
windows also uses a lot of security though obscurity, which means it sucks.
(sorry all you windows fanbois, its not to start a flamewar)
so you can compare open source code and say that more bugs are better, while you cant compare open source and closed source?
I'm not sure I follow you.