Which of these is in your opinion not true?
* The more similar people are to you, the easier they tend to be to understand.
* People of the same sex are on average significantly more similar to each other than people of different sex.
* There is no magical force compensating for differences caused or implied by sex involved in understanding each other.
I don't think trying to `defeat nature' is a very constructive way of thinking, rather we should be working with nature to improve all life.