No, enlightened people see no negativity or negative energy. Negative or positive energy is not a concept here, it’s a part of the dream. They are no more drained by the presence of negative people than a mother is drained by the presence of a small child who is upset because it’s raining and he wanted to play outside. Does the mother know he’s upset? Sure! Does it energetically drain her? Nope. She may console him, she may ignore him, or she may tease him, but at no moment she feels “drained”.