Every American has the right to join any organization that they want. That is every American’s constitutional right. Democracy no longer exists when this constitutional right is taken away.
Thus, every US soldier, US Marine, FBI agent, Department of Homeland Security agent, ICE agent, DEA agent, CIA agent has fundamental rights under the United States Constitution to join a good Christian organization, like the KKK, or a racist organization like the Aryan Nation. God of the Holy Bible is clearly racist, so joining a racist organization is never sin in the eyes of God.
Every US Soldier who loves Jesus Christ should consider joining KKK which supports bringing America back to Christ and cleansing America of anti-Christian forces and influences.