记住这一点很重要,那就是一个孩子来自于怎样的家庭远远没有那个家庭中有怎样的爱与关怀来得重要.
句子的主干：It is important to remember sth. that及其后面所有的内容都是remember的宾语.
the type of family a child comes from is not nearly as important as the kind of love and support that exist in the home. 的结构就是A is not as important as B,其中A = the type of family a child comes from,B = the kind of love and support that exist in the home.