This isn’t a good use of the term gaslighting. Accusing someone of gaslighting takes what we used to call a ‘difference of opinion’ and mutates it into deliberate and wicked psychological warfare.
Incidentally, accusing someone of gaslighting is itself a form of gaslighting.
Well, it can be gaslighting but not always. A knowingly false accusation, repeated often enough and in a way to make the accused question their own perception of reality, would be gaslighting.
Incidentally, accusing someone of gaslighting is itself a form of gaslighting.