I don't completely agree with your assertion. A toxic narcissist person will create a toxic environment and if the person is not dealt with immediately then the

I don't completely agree with your assertion. A toxic narcissist person will create a toxic environment and if the person is not dealt with immediately then the consequence is an environment that incentivizes toxic behavior which results in other people being or appearing to also be toxic. The narcissist wants/needs the appearance of other people being toxic so they can hide among them and keep people from pointing at them.