I don't think that the problem is saying that there are "two sexes." The problem is that many people who say that tend to assign a specific gender or stereotype to that sex. In other words, what they really mean is that "men are supposed to be one way and women are supposed to be another," with the implication that someone isn't a real man or women if they are not that stereotype. That notion dismisses the reality for people who do not conform to those stereotypes. Trans people are the most obvious expression of gender fluidity, but I think most people don't conform to society's rigid standards. They just hide behind a mask, and if they are lucky, express it in the bedroom with a trusted partner.
But, as someone who does not fit gender stereotypes, I can say that there are only four anatomical configurations that people are born with: female genitalia (vagina), male genitalia (penis), both male and female genitalia (vagina and a penis) and no sexual genitalia. Most people are the first two. It also should be noted that a person can have surgery to alter this, and that babies born with both genitalia usually have surgery shortly after birth so they only have one, not both.
So a lot of the reaction to that statement is what people are reading between the lines, and not those specific words themselves.
I don't think that the problem is saying that there are "two sexes." The problem is that many people who say that tend to assign a specific gender or stereotype to that sex. In other words, what they really mean is that "men are supposed to be one way and women are supposed to be another," with the implication that someone isn't a real man or women if they are not that stereotype. That notion dismisses the reality for people who do not conform to those stereotypes. Trans people are the most obvious expression of gender fluidity, but I think most people don't conform to society's rigid standards. They just hide behind a mask, and if they are lucky, express it in the bedroom with a trusted partner.
But, as someone who does not fit gender stereotypes, I can say that there are only four anatomical configurations that people are born with: female genitalia (vagina), male genitalia (penis), both male and female genitalia (vagina and a penis) and no sexual genitalia. Most people are the first two. It also should be noted that a person can have surgery to alter this, and that babies born with both genitalia usually have surgery shortly after birth so they only have one, not both.
So a lot of the reaction to that statement is what people are reading between the lines, and not those specific words themselves.