A couple of things...
1. I really don't know what the Linux server market share was in 2000 in comparison to NT server. Nor what the break-down of kernel vs user-space patches and vulnerabilities are. It also makes things much more complicated when you consider that the two were used pretty much in different situations and for different purposes.
2. That quote was in relation to the desktop/home-user market.
So I'm not going to go there as I don't want to compare apples to oranges, and on limited knowledge.
> By your logic, Windows should have been a safer server choice because Unix servers were constantly falling to new attacks.
How you're getting that from what I said makes no sense to me.