That is basically what a bunch of far right-wing people say. I firmly disagree. If they are harassing or threatening you, walk/run away. If you are having a conversation though, and are having your beliefs/views questioned, it is good to listen, but remain critical. That is how you grow as a person and become better at challenging preconceived views you hold. It is hard to know you are right if you never hear what the other side has to say.

I would think that the word speaks for itself in that toxic things have no redeeming qualities.

This is terrible advice... If leaders took this stance, there would never be any peace anywhere. Don't give in to toxic people, and don't let them drive you, but you will have to deal with them.