It is possible to apply the principles of AP whilst putting your child into daycare.
No, really. You have to be a bit careful about the daycare you choose - but which parent wouldn't be anyway?
The way I see it, we were not designed to bring our children up in secular, nuclear families. I really struggled with having ds all day, with little or no other adult contact. I don't think I'm alone in that feeling. Add some pretty severe PND issues on top of a bi-polar disorder and you have a really bad mix. Going back to work - albeit only 3 days a week - was the answer for me. It meant that ds wasn't in the company of someone who - in the worst case scenario - could very well have done him some harm, and - in the best case scenario - was not the fantastic care giver she (I) should have been. It had the added bonus of me being more relaxed and happier on the days I did spend with him.
I was very lucky, in that I could choose to return to work. Most parents are not in this position - they have to work or the mortgage doesn't get paid, the bills don't get paid. Often it's not a case of downsizing or budgeting better either. They have to work or the kid wouldn't have a house to live in.
I also agree wholeheartedly with Chibli. No-one asks my dh how he feels putting ds in nursery (he does the drop-off once a week). No, he is allowed to work, he is Man. I am Woman, so I must stay home and service my family - no matter the cost to myself. And no matter the cost to dh, who would love to be a SAHP (and would be much better at it than I was) but who really couldn't afford it.
The whole question is a no-brainer, really. And the OP is obviously a troll - but (s)he's certainly made us do what we do best: Beat each other up over our parenting choices.