That's an interesting idea. This is actually one of my least favorite quotes from Carl jung. I don't know if it really had that much weight before either. I think older Generations like this quote because it gave them a reason to be confrontational. When in reality, confrontational people are just defensive. They have internalized bullying. So if somebody is being bullied, they have every right to defend themself. They shouldn't really need a reason from a random quote.

So I think older Generations liked this quote for that reason. And I think that partly motivated Carl Jung to say this. But at the same time you can also see how he was just saying that we need to know who we are. Basically it's just saying to know thyself.