The fourth law listed in the Talmud as being a part of the seven laws is the prohibition of forbidden sex. There are six pairs forbidden from having sex, and one of them is a pair of a man and a man. This prohibition is the primary subject of destruction by the LGBT cultists. Additionally, however, it is immoral on a rational level for a man and a man to engage in a sexual or even "romantic" relationship of any kind, and the same applies to women.
According to Jewish tradition, the appearance of a rainbow in the sky signifiies that the world merits complete destruction, but because of God's covenant after the flood, he will have mercy and not destroy it. Interestingly, the same symbol is used as the LGBT flag. The sign of the world meritting destruction but God being merciful nonetheless is now being used to support the violation of God's rules about sexual and family standards. The sign of the world being evil and God being merciful is now the sign of supporting evil. How "odd."