I'd sure love to hear your thoughts about that pic there. Reclaiming the symbols they have hijacked and perverted?
The concept of Light has many different uses. Take a look at the Prologue to John's gospel. Should be enough to calm some of your fears. There are very good discourses that use the concept of Light. But, yes, it is also used by Luciferians. Perhaps they are using a Dark light with which to see. But the True Light will no doubt blind their eyes forever!
"The light shines in the darkness, and the darkness has not overcome it."
"There was a man sent from God whose name was John. He came as a witness to testify concerning that light, so that through him all might believe. He himself was not the light; he came only as a witness to the light. The true light that gives light to everyone was coming into the world. He was in the world, and though the world was made through him, the world did not recognize him. He came to that which was his own, but his own did not receive him. Yet to all who did receive him, to those who believed in his name, he gave the right to become children of God."