Come on Brother you know that is not true. It was because of one mans disobedience that sin came into the world.
Rom 5:12.. Therefore, just as sin came into the world through one man, and death through sin, and so death spread to all men because all sinned—
That is because of Federal Headship. Adam was the head of Eve as the husband. Both in Scripture and Tradition when this sin is referred to formally by name it is called the “Sin of Adam” or “Adam’s Sin.” It is also described as coming to us “through one man” not “through Adam and Eve” or “through a man and a woman.”
You know as well as I do that Adam was responsible there for he was to blame. But what does Genesis 3:6 actually say?
"So when the woman saw that the tree was good for food, that it was pleasant to the eyes, and a tree desirable to make one wise, she took of its fruit and ate. She also gave to her husband with her, and he ate."
This verse makes it clear that Eve was the first to eat from the tree of knowledge of good and evil. God had told Adam not to eat from the tree, but Eve also had knowledge of this. Adam ate but only after Eve