Placing an emotional charge on the term slavery is a purely subjective interpretation, not one commonly shared, perhaps inspired by local political sensibilities.

Language stands or falls on the use of SHARED definitions. It's why we have dictionaries. There the term slave is defined "as a person who is owned by another person and is forced to work for and obey them.". Stated facts which don't don't carry emotions. You put them there, but I don't.

The precision of words is the basis upon which all logical reasoning and deduction are based. All scientific, medical, engineering and legal writings are grounded on clear, unambiguous, definitions. Our Western civilization was built and depends on it. It's why emotional connotation and vagueness have always been confined to the realm of fiction, poetry and the rhetorics of politics. All three, in my opinion, mostly useless, and a waste of time.