I don't even no where to begin tearing your message apart.
1) Surge suppressors work once (some twice or more depends on the design), then they are dead. so yes, in a way a computer could be considered a surge suppressor, because if it takes a hit, it is dead.
2) Most newer laptops use about 18VDC, 2A not a common power supply at all, typically cost between $75 and $125. Not 12VDC
3) As an electrician, former firefighter, and and IT administrator, I have never heard of a quality surge protector starting on fire when being used for its intended purpose. BTW Thay are designed to fail.
With computers being made more and more "on the cheap" components cannot take surges as well as they did 15 years ago, it used to be that only the PSU would die, now, the PSU take MoBos, CPUs, and other components with them.
I can only hope that you were trying to be funny with your post and don't actually believe what you stated.
Check this link out for a little more info on surge supressors. http://www.extremetech.com/article2/0,3973,68941,00.asp