Calling this whataboutism is like responding to the claim “people have a biological urge to reproduce” as a naturalistic fallacy.
You’re using the word in sorta the right ballpark (I did make a comparison, e.g a “what about”), however not every time someone says “what about X” are they committing a fallacy.
My entire point was how terrorist is a loaded word, that we only use it to describe one side (the side not in power), even though the technical definition obviously fits organizations in power. Making a comparison to demonstrate my literal only point isn’t fallacious.
There were native american terror groups, yet the U.S government that literally genocided millions of native Americans isn’t a terror organization, despite their use of terror and violence to achieve political goals. It’s a word with clear problematic etymology.