Republicans voted for Roy Moore in the primary. Let the man run. Meanwhile, if there’s criminal behavior, let it be investigated. If there’s unethical behavior, let it be discussed in public. In a democracy, this man is the voice of (some of the) people. Resorting to trickery to remove him from Republican consideration, or hide him away from the electoral process, is undemocratic.
He represents a tiny minority of citizens. He (and they) have a right to participate, and we-all have a right to point, condemn, and laugh at their behavior.