The immutable laws and the highly centralized authority structure which also has no transparency or accountability to its adherants is a system with a large chance for error and abuse, and great oppression. No checks and balances. It foresees becoming a State religion, and then the World religion. It denies vote and voice to anyone who breaks one of its religious laws (including the personal chastity laws, not just things like do not steal, do not kill). If you get married without the permission of your parents, you are not allowed to attend feast or vote in community affairs. Anything written by a Baha'i about the Faith must be approved by the Universal House of Justice...this form of control of media effectively prevents any criticism from the general membership (no checks and balances again).
It does not allow women to serve on the highest governing body, the Universal House of Justice.
It teaches that homosexuality is a spiritual disease.
By its laws it is permissible to burn an arsonist as punishment, and some Baha'is see this as the better alternative to life imprisonment because if they are punished in this life they will not have reprecussions in the next life.
You bet I am uncomfortable with these things.