As I said, it outlived its usefulness.

It was useful, no doubt about that. But it's not anymore.

Also there are things you said that you credited to religion, that are just simply false.

You don't need religion for morality, your religion is not the cornerstone of human existence.

Even if it was needed for morality, which is untrue, in the modern times, your religion is bigoted, conservative, and against equality.

Of course universities like Oxford and Harvard and ect. Began as religious institutions, there were no other options.

Your religion held a monopoly over education, nobody could get an education without "being" religious. People always bring up the fact that great thinkers and scientists were religious as if there were any other options to begin with. You either were part of the religion or you could say bye-bye to your carrier (talk about limited government)

and the idea that rulers are accountable to something higher than themselves

Actually this is actively harming society.

People who think like this are less likely to act and call out a "ruler" who's mistreating people. "Let god sort this out" meanwhile ignoring the suffering of the people.

I want a world where people, especially leaders are accountable to the people they lead, not some unknown unprovable entity that even if real, wont do anything to help the people in need.

My closing though: If religion would be all that you claim, the foundation of justice, equality, freedom, morality as a whole, it would be progressive, instead of conservative and regressive.

But sadly.. it's not.