I'm just not one of those people who thought having biological children was that important, to me it was more about wanting to raise a child.
I come from an interracial family: My father is from Nigeria, and so he is African-American, and my mother is American and white, so I rarely see skin color. It's never an issue for me.
The population forecast for the United States in 1970 is 170 million. The population forecast for Russia alone in 1970 is 251 million. The implications are clear.