What do Buddhists mean by "people with both parents"?

General meaning: Everyone has dual parents. Some people just need to think about their parents or each other's parents, and they all jump out of the cracks in the stone! I think there are more people in the former. They are filial but selfish. The latter, I want to say, you are too unfilial. You are not filial to your parents who gave birth to you and raised you. You are not human at all, but you should keep a bowl of water flat. I treat my husband's parents like my own parents, even more dear than my own parents, but if my husband takes out half of what I have done to his parents, I will be Amithofo.