Shabbetai Zvi only claimed to be the Melech HaMashiach.
Chabad claims that Rabbi Schneerson is:
[1] the Melech HaMashiach
[2] a navi [prophet]
[3] G*D Himself (in human form) [or G*Dliness in human form]
Which is worse?
If I remember correctly, most of Shabbetai Zvi’s followers no longer believed
that he was the Melech HaMashiach after he died.
Chabad claims that Rabbi Schneerson is the Melech HaMashiach,
even AFTER his death.
Which is worse?