We lost Hagia Sophia due to our sins, I don't see that we have improved any since then. The sins are the same and even worse.
I disagree. Constantinople fell due to our sins - yes. Not the Hagia Sophia.
The Hagia Sophia is a Temple of God. It was not the capital of Constantinople. It does not stop being a church due to the failure of the presiding government.
There are too many other things and people in need in other parts of the world for us to throw away our money to pursue this unrealistic dream.
I don't understand how signing a petition is "throwing away our money". If you mean, that if the Turks decided to allow the Hagia Sophia to come back into the hands of the "Eastern Orthodox" and money would have to be spent to restore it - I disagree, but can understand your point. The cost of restoration would be enormous, but I would imagine that money would come out of many places to have it restored to its original beauty.
This is a foolish unrealistic dream.
Then count me a "fool" for desiring to see God's Temple restored in all it's magnificience. That it be re-established as a place of worship for all Eastern Orthodox Christians.
Your fellow struggler in Christ,
Rd. Chrysostomos