Baha’u’llah taught that an equal standard of human rights must be recognized and adopted. In the estimation of God all men are equal; there is no distinction or preferment for any soul in the dominion of His justice and equity. – The Promulgation of Universal Peace, p. 181.
…the world of humanity is one race, the surface of the earth one place of residence and these imaginary racial barriers and political boundaries are without right or foundation. Man is degraded in becoming the captive of his own illusions and suppositions. The earth is one earth, and the same atmosphere surrounds it. No difference or preference has been made by God for its human inhabitants; but man has laid the foundation of prejudice, hatred and discord with his fellowman by considering nationalities separate in importance and races different in rights and privileges. – The Promulgation of Universal Peace, p. 231.
With respect to your question concerning the position Baha’is are to take regarding homosexuality and civil rights… Baha’is are enjoined to eliminate from their lives all forms of prejudice and to manifest respect towards all. Therefore, to regard those with a homosexual orientation with prejudice or disdain would be against the spirit of the Faith. Furthermore, a Baha’i is exhorted to be “an upholder and defender of the victim of oppression”, and it would be entirely appropriate for a believer to come to the defense of those whose fundamental rights are being denied or violated.
The wrong in the world continues to exist just because people talk only of their ideals, and do not strive to put them into practice. If actions took the place of words, the world’s misery would very soon be changed into comfort. My hope for you is that you will ever avoid tyranny and oppression; that you will work without ceasing till justice reigns in every land…. – Abdu’l-Baha, Paris Talks, p. 16.