Obviously it's a Christian society.The country might have a Christian leader. The country might have a history of Christianity. That doesn't mean I live in a Christian society. Nearly all the people I know would identify as atheist, agnostic, faith other than Christian, or identify as Christian because they were christened into the religion but do not follow the faith. It's not a Christian society.
Like Saudi Arabia is a Muslim society.
Have a look at Wikipedia I'm sure there's something on there about it.
Just because you don't know anyone other than fellow Muslims doesn't mean it's not a Christian society.
We have Easter, good Friday, Christmas and all kinds of other bank holidays, none of them are Eid or Hanukkah