Whether a person or a house, tzaraat (biblical leprosy) and uncleanness requires isolation. (See Leviticus 14:38, for example.) Those who sin openly, flagrantly, can't be tolerated in the congregation. You're not doing anyone any favors by letting them hang around and poison everyone else.

Those who sin through ignorance or who are striving to do what's right, don't want to sin and are probably good people. Be patient and kind. Don't rush to judgment. #torah