@allingon, I don't mind you challenging what i have said but the research says that in fact the need for a love connection while growing up is absolutely vital and this is recognised by psychologists and psychiatrists.
What you are talking about (and what the article you linked talks about) is something different and i can see that this was discussed upthread. You were talking about the problems carers face in the face of rejection. The article you linked is about helping the carers, so that the carers help the children.
Bottom line is that growing up without love is incredibly debilitating and this is not given enough consideration in relation to policy and practice and expectations in relation to looked after/adopted children, not enough guidance about what could be done to mitigate the affects and help the child where a carer finds themselves unable to bond.
Growing up in any family situation without love is debilitating though there will be a sliding scale, for example in a normal situation there might be a grandparent or someone else who steps into the breach.
No individual here is being criticised.
A lack of love connection will affect school, other relationships, interests, well being, mental health, everything.
I don't think that an upbringing without love vs neglect/abuse is an acceptable choice, neither are acceptable, and if this is discussed/researched more, then what can be done is more likely to be discovered.