I'm sorry, I will use the words "rare abnormalities" in a scientific discussion about biology because in biological terms that's what they are. I'm sorry that the word "abnormal" has become politically charged but as a scientist I reserve the right to use scientifically accepted words in their original and correct form. If they have been picked up and used incorrectly by others then take that up with them and not me. "Rare" likewise is not immaterial, being rare is part of it being abnormal. That's by definition. Again, that's precise use of the language.
I'm sorry for anyone that gets used as a political football. That's unacceptable. However when someone asks me what I mean by "sex" I will use very precise language in order to be very clear. It's a scientific definition. I was born with XY chromosomes and the normal (scientific meaning, not politically charged meaning) set of primary sexual characteristics. However these are facts and part of the *biological* definition of being male and, yes, normal. Had I had the misfortune to be born without the normal (yes, that word again) set of primary sexual characteristics I would describe myself as biologically abnormal. I'm not going to change that correct scientific word in a scientific discussion because it may have been misused by others.
You will note that at no point here in this discussion or in others have I ever referred to LGBTQ people as "abnormal" and nor will I. I have referred to LGBT+ people as "not of conventional sexuality". This is factual and non pejorative.
Edit - be aware that scientists are also prone to (correctly) using words like "freak", which again has a specific usage defined by things like the number of deviations from the mean that the individual represents. As ever, context is all. I'm a scientist, I'll use scientific words in a scientific conversation accordingly. I'd describe a woman of 6'6, 2m in height as "a freak" if we were talking about physical size in a biological context. I wouldn't describe her as such to her face in a different context, for obvious reasons.
The discussions above where I was talking about "abnormalities" were scientific in nature. I took great care with the language I used.