They are not Jews, they are a cult following their Talmud which they invented and is completely alien to Moses and the prophets. And like many cults (Heaven’s Gate, Rajneeshpuram, Branch Davidians, ect) Talmudisms uniform creates a strong, visible "us vs. them" sentiment, it fosters control eliminating individuality and creating allegiance. Allegiance seems to be the most important characteristic for Talmudists.
Its a fine line between that and the authentic religion of Christianity. Orthodox monks and priests wear black to remove fashion and any other concern or care for comfort or to look good, dedicating every effort toward Christ.
