If nobody denies that biological sex is real, why can't sports just be divided based on sex as opposed to gender?

Sounds like a great idea especially since SJW snowflakes made gender way too complicated. Back in my days sex and gender were used as synonyms. Many people do still use them interchangeably, but it's getting difficult as there's now apparently 72 gender identities more or less (SJWs still haven't given us a definitive number with a credible source). Things were so much easier when it was just male or female 

Do you really want a MTF with you in the locker room? As a male,  I don’t. It would be very uncomfortable 

I have no problem with that. I don't see it happening however as any move towards it will be deemed transphobic even if transphobia is a made up phobia. 

Most sports still are divided that way and I think it's going to be a very long time before a woman plays in the NBA or NFL. 

"If nobody denies that biological sex is real, why can't sports just be divided based on sex as opposed to gender?"

You're right.  And I recall one example on a radio show where they were interviewing  an ex gold winning runner from Australia where her running time achievement had just been usurped by a male-woman, and this ex gold winning athlete had a commission agree with her that sports should be segregated by sex, and not gender.  I'm sorry I didn't note the particulars of that interview.

Suffice it to say, the bulk of the interview was the interviewer attempting in every way imaginable to guilt the ex gold winner into admitting to being a "transphobe".  But that ex gold winner was sharper than anyone I had ever previously heard regarding this.  She never once called that male a "man", and always referred to "her" as a "woman" as these are all gender terms.  But she did call that woman a male and not a female, which are sex terms.

So that transsexual was referred to as a "male woman".  This type of vocabulary does not violate the trans activists stated ideas regarding gender and sex.  Although just like the interviewer tried, the activists STILL want to impose an overarching idea where one is a "transphobe" anyway whenever they disagree with any of the semantics of a debate that might affect an activist "win" in any discussion regarding trans issues.

.

men are physically stronger than women. sports should be gender specific. and trannies should not be allowed to cross over IMHO.