I’m an EE & I’m pretty sure that “gender” is defined by external characteristics... The electrical connector with the contacts that stick out are male connectors, the receptacles they plug into are female.
Not a social construct.
I've worked as an electrical and computer engineer most of my 65 years (despite having a BS in Physics, not EE), and while part of what you say is true (we do use "gender" to describe the male and female connectors), that's because decades ago, if we had used the proper term -- "sex" -- not one of us would have been able to keep a straight face. You practically couldn't say "sex" in polite business company back then. "Gender" was substituted for "sex" in a bow to the gentler sensibilities of those times.
Assuming you have worked in the field as long as I have (since the late 60's) or earlier, and remember what the industry was like in those times, you know what I'm saying is true.
FRegards,
Dayglored