I'm not sure I've read everything thoroughly (brain still in general anaesthesia mode), but comments specifically for ftr and vt:
vt: "Parenting is about living - living your life in a good and positive way, providing good opportunities and experiences for your child, being a good role model so that they learn how to build relationships, and how the world operates. There is nothing to suggest that having one parent at home full time for a completely arbitrary period of time will enable this to happen in a better way. End of."
I can't see that anyone could disagree with this in general. However, the OP wasn't about parents needing to be there full time: it was specifically about nurseries. One of my best friends is a nanny to three children whose parents work 7-9pm five days a week. The children are absolutely delightful: happy, well balanced, polite and pleasant company. Horrid as it sounds, I doubt that they would be quite so pleasant if they spent every day with their parents!!
Another acquaintance is a childminder. If I didn't look after my own children, I would be more than happy to entrust them to her. Whenever I see her, she is engaged with her charges in some way - even if just getting them to pay for a newspaper. She is superb, and the children whom she looks after are by all accounts having a lovely childhood. One of my friends travels 60 miles per day to leave her children with this childminder!!
I wouldn't suggest for a minute that any of these children would feel anything other than happy, loved and safe.
Nor would I believe that children who spend some of their time in a nursery would suffer any ill effects. My own children went to a lovely little nursery school for three mornings a week before starting school, and they had a fantastic time. It was a tiny place, and the staff all had grown-up children of their own so had lots of experience and time to give to the little ones.
And now VT: "I am a WOH sinlge M, does that make me less of a parent?"
No - unless that's how you feel. The aggressive tone of your posts suggests that might be the case.
"does than make mean my dc are not as happy yours? actually i already know the anwser to that. I know i am a great mother, you only have to speak to my dc to know i have done a good job in rasing them Ds1 is 19, independant, intelligent and wonderful, i am proud of him and pat myself on the back everytime i realise what a lovely young man he has turned out to be."
I take my hat off to you. I can only hope I can say the same thing of my DS when he's 19.
"So i dont need to defend my parenting but it makes me so at the ignorance and smuggness of some mothers, i can only imagine they put other parents down to try and make themselves feel like they are good parents, i dont have to do that."
But you are branding other mothers 'ignorant' and 'smug'. Why?
What I feel sad about is the children who are put in full-time nursery from 8-6, five days a week. They can't possibly get the one-to-one (or one-to-two-or-three, if there are siblings) care that children under three undeniably need (see research by Sue Palmer, Penelope Leach, Steve Biddulph et al) from a significant adult (be it Grandma, nanny, childminder or parent).
I believe that children learn the most from socialising outside the home/nursery with people of all ages - not just their peers. They learn from going to the shops, from wading through leaves, from poking at drains. They don't need to be ferried from educational activity to educational activity, but they do need heaps and heaps of time with an adult who cares about them more than anyone else alive.
I am not saying this to put anyone else down or to make people feel bad/guilty about their own needs/choices. In any case, if you genuinely feel happy about your own choices, nothing that anyone else says should make you feel guilty! I am saying it because it's what I feel strongly to be the case.