If I mean "customers, suppliers, neighboring businesses, employees, their families, investors and anyone else affected by my decision", should I write that out or should I just write "stakeholders"?
Again, you're thinking of an "agile" stakeholder- not a "stakeholder capitalism" stakeholder.
Why is this so difficult for you to grasp?
Because I personally haven't come across writings or speakings AFAICR in which "stakeholder" is used as a weasel word.
I will avoid the word now that I've had this conversation.