The Bahá’í Faith originated in Islam, just as the Unitarian/Universalist Church originated in Christianity. They have parallels in their history, both being of relatively recent origin, and both espousing the validity of all religions and all gods as their preferred outlook.
They are comparable in some ways to the political organization called the United Nations, and both about as popular … which is to say they each have few admirers and many critics.
The reason for this, I think, is that, like the United Nations, which gives a vote to every nation, the Bahá’í Faith and Unitarian/Universalism do not recognize any religion as distinctly superior to any other religion. Every religion gets a vote of confidence as a way to find God or Nirvana.
But in the end we know that some religions are distinctly inferior to others, and are barely civilized in the way they promote evil effects among their people, including human sacrifice and the holocaust of millions. Other religions are superior in the way they promote love and peace, and in the way they support justice and fair play among their own people rather than oppression and persecution.