Interesting and controversial which I imagine will garner a lot of comments and opinions. I agree with your overall premise at the end of the day we need to be mindful of judgement and loosely banding about terms.

That said a lot of what is and is not diagnosed often sits on a spectrum, meaning as you point out that we ourselves may share certain traits but also we may see certain traits in others.

Food for thought and great suggestion about recognising where we can our own agency.