I saw something interesting in the BBC a while back. I wish I could provide a link; I will if I can. I'd like your take on this.
The author was talking about the different expectations in the UK and USA when it comes to politicians expressing religious beliefs. Voters in the UK want politicians to keep it private, as you indicate, while American voters like to hear what God has done in a politician's life. The irony? The UK actually has a state religion, while the USA has a constitutional separation of church and state.
The author suggested this is more than irony. It is
because the UK has a state religion that voters like politicians to be religiously neutral. And it is
because the American system is religiously neutral that voters like politicians to affirm the value of religion.
Archer