Nada
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While Iran is impressively progressive in regards to transgender issues officially; they are also very accepting of Christianity officially. Today, there are at least 600 churches for 250,000 Christians in Iran.
In fact The government guarantees the recognized Christian minorities a number of rights, such as the right to buy non Halal food.
So can you support that Christians are less accepted than transgender people (who, unlike Christians, are officially advised to keep their status private)?
There are transgender in India.