" ... and don't be so naive to think Linux and MACOS don't have as many problems, they do, they're just not aswell researched yet."

Linux is buggy. Period. BUT:

Not only is the Linux design far more secure (thus more difficult to exploit) than the crap pushed by MS, but all Linux distribution's have different dependencies (libraries, kernels, setup, you name it). This means that the virus writer has to either statically link their executables and create some very stealthy 100MB viruses or have a different virus for each different Linux distribution ( do you even realize how many of these exist? ) and custom Linux installations.

Mass infections like under XP?

Think again!