No. Words do not evolve to take on whatever meaning you want them to depending on your current situation. Gaslighting is a very specific form of emotional and psychological manipulation with a very specific targeted outcome. Using it as a catch all negates the seriousness and the specific circumstances of the term and therefore the specific treatment associated with it.

It’s the same as people who use “literally” to describe things that aren’t literal. Just because you want to, doesn’t make it correct. The term still has specific meaning, just because some people choose to ignore that specific meaning doesn’t mean it loses its specific meaning.

Another example from current events: there is a reason we distinguish between protests and riots. Closely related, but each specific to a set situation. Not every protest is a riot, but every riot is a protest. Not every instance of manipulation is gaslighting, but gaslighting is manipulation.

Words have meaning.