That is your opinion, and it's usually not worth trying to change someone's opinion if they believe "gang stalking" is a real thing.
It's one of the reasons it's so serious, anyone attempting to help an undiagnosed schizophrenic, just drives them deeper into it. Because they just write that person off as "in on it".
As their behavior becomes more and more erratic, everyone acts weird around them as a response eventually leading to reclusive hermits who constantly harass their neighbors or escalate to violence over imagined sleights
Gangstalking is a truly fascinating symptom of schizophrenia.