You don't need to join any physical "temples"
Hello Brother, your answer is really perfect. I wanted to add a personal note to what you said. I wanted to share it because it has been very comforting to me in many situations.
Very often Satanists complain that currently there are no temples dedicated to our Gods. Some time ago I was also very sad seeing that in my country, Italy, everything has been destroyed and stolen by Christians. However, a sentence in JoS made me think and gave me a lot of comfort and joy. It is taken from an ethical parable relating to the Goddess Astarte where she explains about the temples:
"My honor lies with you and not with marbles of stone"
This is really profound. We ourselves give honor to the Gods, in our hearts, through our actions, with the correctness of our minds. The temple is something more, but the whole thing is inside us, the temple is a material manifestation of the honor of the Gods that resides in us, but it is inside us and not in the temple itself.
JoS is our home, where we learn. And where we can be taught by our Gods about all that they are, represent and teach. Therefore if someone is looking for his place, he will find it on JoS and not elsewhere in some physical church, a church that is largely manipulated by the Enemy today. If a Satanist wants to know the Gods, he just has to open JoS. If after learning the sacred knowledge, he wants to honor the Gods, may he look inside himself. Then when he is ready and wants to meet them, the first thing to do is to observe the presence of the Gods in his life. They are present today, in the world, in their knowledge and power.