Given that religionists have a habit of condemning to eternal damnation (or worse, enacting their brand of 9mm/C4 justice in reality) those who do not adhere to their particular brand of irrational woo, I'm all in favour of keeping that shit out of the workplace.

Fuck 'em. They demonstrably cannot play nice with others. The only way to keep a lid on this bollocks is to make people keep their religious beliefs to themselves.

Worked examples:

Rick Santorum
al Qaeda

As for this:

The Government’s position received an angry response last night from prominent figures including Lord Carey, the former Archbishop of Canterbury.
He accused ministers and the courts of "dictating" to Christians and said it was another example of Christianity becoming sidelined in official life.

He says it like it's a bad thing.

But then he does wear a stupid hat for a living. Shame, really. He'd be a clever and useful chap, if only he dispensed with the woo.