Things that make a 3rd Year Biomedicine student cry:
or are you going to be a fucking anti-intellectual prick and tell me animals have socially constructed their sexes as well?
Animals never had any real ‘sex/gender’ attached to them in the first place eg given that ‘male’ birds are ZZ, ‘female’ birds are ZW and the chromosomes and sex determination system are so different from the XY determination system where females are the homogametic ‘sex’ (XX) and males are the heterogametic ‘sex’ (XY) in humans you wonder where humans drew that point of comparison in the first place.
biological facts
http://www.twisteddoodles.com/post/86414780702/working-in-science
There is no such thing as a ‘fact’ in science, there are theories supported by experimental data and statistical analysis and sometimes they turn out to be INCORRECT or mistaken for something else or there are multiple influences of which we have isolated only one. If facts existed my life would be much easier.
our chromosomes
Our chromosomes (and their expression), environment AND epigenetic markers.
sex characteristics…any variance from that is an intersex condition and their existence
So if I decide the next day to have prophylactic surgery to remove my breasts because I don’t want to risk the chance of breast cancer and the “biological sex” I am born as is female will I spontaneously become intersex?
The concept of sex and gender has a complexity which can not simply be quantified. It is less of “biological sex” and more of the “social stereotypes that society places upon qualitative and visible phenotypic traits” which conflicts with what the person identifies as.
Even our definition of “biological sex” was extremely rigid (male, female or intersex as you describe), we’d still have an absolute MINIMUM of two sexes within their life. Everyone would at least be female (shortly after fertilisation) and then female or male or intersex.
Oh god, this is that "we're all intersexed and intersex has an evolutionary benefit because it exists" asshole, isn't it? I think it is because of their use of bird sexes to try and prove a point. They're basically trying to argue that biological sex is a social concept.
And yes, "people who know more than you" can still be wrong and biased. I knew a girl who was in college to be a neurosurgeon, and on one of her university group projects, the group leader commandeered the project to push veganism.
Edit: Just saw someone (who claims to be a practicing neurologist) respond to this, and called the OP 'obtuse', which is what I was thinking when I read this. They also urge the OP to talk to their professor.