What is the ruling on working for "Jehovah's Witnesses" and receiving wages from them, and what is the ruling on befriending and dealing with them, and are they Jews?

The Jehovah's Witnesses organization is secretive, Christian in appearance, but Jewish in essence. It aims to spread moral chaos and decadence, and does not believe in the Afterlife. It has widespread activity in countries around the world, especially Islamic ones. It is a dangerous Jewish organization hostile to Islam and Muslims. It is not permissible for a Muslim to deal with them concerning their activities. As for working for them, it is permissible if the work is lawful, does not aid in evil or falsehood, and is not a demeaning personal service to the Muslim. However, befriending them leads to disgrace and harm, and one must be cautious of associating with non-believers and those who advocate disbelief, for a person is upon the religion of his intimate friend.