faith is in something which cant be proven or seen. Atheist cant have faith therefore not a religion. science doesn't have 'faith' either, it has reason.
Again the religious poking their noses into things that don't concern them, telling people what they believe in, according to their god-centric mindset.
There is no 'why', there just 'is'. Why does there have to be a 'why'? Why dinosaurs? Why plague? Why the milky way? Why black holes.
We don't know but that does not mean - insert supernatural impossible being from outside space and time. Where did god come from? How? Why?

This is getting away from the topic, you will never shift my views and I suspect you will cling to yours, we are all different therefore this illustrates why it is so important to separate religion from the state.
Do what you think is right about marriage etc according to your religious world view but don't expect others to follow you. You would say the same to me.

So we are in agreement.

I don't go to mythical places with strange men.
-- Douglas Adams, The Long Dark Tea-Time of the Soul.