I dare say the religious trappings are largely cultural, but it's perfectly possible to live a life of decency, respect and inclusion without needing a supernatural belief. Gens una sumus, as the chessplayers say, whereas religions, like nations, like your local sports team, are tribal.
As is the scientific community you love so deeply. Western Scientists such as Darwin, Sam harris and Dawkins and Hawkins all look similar and have had the same upbringing. all attended similar universities and culturally came from the same place. When will the atheists acknowledge that they have religion as well with the same cohort of people, and dogmas they so much hate.