Noahides who follow the [[:Category:Rambam Approach|Rambam Approach]] declare all existing religions invalid by definition. Their approach has been to reject all aspects of their previous faith and adopt various Jewish traditions, albeit modified in some way.  The religion was described by the [[:Category:Rambam Approach|Rambam]] whose sons were proponents of Jewish Sufism.  The approach holds up to rational scrutiny and criticism all other existing religions and encourages replacing all methods of worship one may have inherited in order to adopt various modified Jewish traditions. While people in other categories can be considered true believers (or at least Noachite law-abiders) their ministries are neither regarded as authoritative nor legitimate and they are invited to attach themselves to this ministry instead.  For these, only this category is valid.