May get in trouble but...
🏡 Local WIN 🏘️
Our resident liberal at work was explaining that we all start out as female. During the process the y chromosome gets added to some and turns into a boy. So girls can just add or boys cut off to switch genders.....
I said I think that we all start out as liberals. At some point God decides to make some of them different so he adds the other half of the brain.
I will likely end up in the supervisors office....
Ba-zing!
Still, your co-worker is wrong from a biology standpoint. The presence of the Y makes the male. Human females have Barr bodies, which are essentially dormant X chromosomes. You can't add or subtract a chromosome. Though it sounds like this co-worker might have an extra chromosome.