Good lord Microsoft, just write software that isn't full of holes and stop trying to make excuses for why your products suck.
For the record, in the 5+ years I've owned a Windows PC, I have had every layer of protection disabled. I'm 25 and an avid user of the internet, navigating to god-knows-what random sites. Somehow, my PC has never contracted a virus. Why? Because I don't click on random crap, and I don't use anything Microsoft makes to browse the web.
The solution is not decide who can and can't access the internet, the solution is to quit being stupid and write software that is intelligently designed. If Google and Mozilla can do it, so can Microsoft.