Um... the article says 8am to 6pm; somewhere in this thread that has been changed (accidentally I'm sure) to 6am to 8pm. My nursery doesn't even open those hours, nor is DS even awake 6am-8pm! I'm sure people who don't see their child 6am-8pm are very rare indeed.
As for the article - I think it's a vast oversimplification. Aren't we really talking about good and bad childcare? It's all very well looking at nurseries, seeing some bad nurseries and some bored/miserable, unattended-to babies, and finding that a percentge of kids who went to nursery grow up aggressive and whatnot. But where is the evidence for what happens to kids who aren't in nursery? A percentage of them will be receiving bad, neglectful or negative parenting at home. Many more will most certainly not be getting 1-1 care, even if it is great care from their very own mum, because many people have 2 or 3 small children and 3-1 is the ratio they get in nursery anyway.
We haven't always had nurseries but we've sure as hell always had aggressive, unpleasant people. Some of that has always been down to being raised badly - and being raised badly or well can happen whoever is doing the caring.
As for me, I think I'm a good mum and give my DS piles of love and attention when I'm at home with him. But I also leave him playing on his own a lot - supervised, but not being played with - while I stuff the washing machine, get the lunch ready, tidy up, change the beds, blah blah blah. And he gets pushed round Tesco (or Gap if he's lucky!) getting minimal attention from me (more from old ladies ) while I do the shopping. At nursery, as far as I can see, he gets constant, loving, caring play and attention from professionals who aren't trying to do anything else at the same time. He has 2 keyworkers so if one is off he has the other. So far, he loves it and if anything he comes home overexcited and very tired, far from understimulated.
There are good and bad parents, good and bad nannies, good and bad nurseries, childminders, relatives who care for kids, etc etc etc. I bet the reality is a happy, well-socialised child results from good care wherever that care comes from.