I swear most people who throw big words like "social constructs" around don't know what they mean, at all. Something being a social construct doesn't mean it's not rooted in physical reality in any way (colours), or that we should abolish it (cough cough, laws anyone?)
You may not relate to the "born into the wrong body" narrative personally, which is completely valid and deserve to be heard, but that *is* the lived experience of many other people. You are not entitled to deny its validity on everybody's behalf...