Psychological evolution through offspring

We all carry psychological baggage. Unresolved issues from the past that make us vulnerable to the uncertain future. There are many ways to find shelter from these vulnerabilities, including families, therapy groups, workaholism, etc. Still, most of us will carry these unresolved issues to the grave.

When a couple forms and begets children, a sort of psychological evolutionary process happens. Children are inevitably imprinted with the traits of their parents, including their unresolved issues. The child - an initially blank slate - reacts to these issues by attempting to solve them. Because the child inherits traits from both parents, he finds at his disposal two different sets of tools for problem solving. Parent A has both positive and negative traits (A+ and A-) and parent B has the same (B+ and B-). So to solve some A- issues, the child will be able to use B+, and vice versa. Of course, the child has access to many other tools, given the culture, education, etc., but the imprinting of the first few years is undoubtedly strongest.

Is there any substance to this? Personally, I have never seen families where the children were not polarized by their parent's psychologies. Some children assimilated the polarization successfully, while others suffered from it all their lives.

In this respect, family lines contain solutions to human problems. This is consistent with how biological evolution is said to work.