I'm not sure I understand the metaphor. What is wrong with lasers? If they are pointed at your eye they could be harmful, but we don't have an 'eye' for the waves that are pointed at us, and a laser powerful enough to do damage to us for other reasons like heat would show likewise the same damage in non viewable wavelengths.
No one is contending that EMF waves can't harm people, since it is know that they can if they are of specific type and power. People are asking how it is possible the ones that exist that are of low power used for communication could harm some incredibly small number of people and not everyone, since it is a physical effect. If you flipped it and someone said they were immune to bullets, would you believe them?