I don't understand the title.
If men can't why is there so much deadbeat dad dialog and drama over single mothers?
"If you want to control people, if you want to feed them a pack of lies and dominate them, keep them ignorant. For me, literacy means freedom." - LaVar Burton.
That's true. That is what you quoted. However, "Motherhood also means the woman is pregnant and her body is affected by it. A man is not affected by a pregnancy." is what was actually said. Unless you lack serious comprehension skills, the semantic meaning of that statement is obviously about the physiological effects of being pregnant, not the psychological effects of being involved in a pregnancy.