Yep, it's not just England, but the UK as a whole, but it is a little blurry.
While the Royal assent side of things is 100% ceremonial and as such doesn't really qualify as religious interference (directly or indirectly), it however is still one of three factors do stop the UK from being considered secular, with the other two being:
- The UK having a state religion (Christianity as a whole, Church of England for England)
- The Lords Spiritual
Now it's the second of these that is the biggest concern for religious interference within the UK, as the Lords Spiritual are 26 members of the Anglican Church who are automatically given seats in the upper house and have full voting rights.
That the upper house in the UK is unelected is bad enough (but a topic for another thread), that 26 of those seats are then given, with full voting rights, to the state religion is more than enough to ensure that the UK can't be called a secular state.
As the Humanist society stated when Rishi Sunak described the UK as a secular country:
"‘Uniquely amongst the four nations, England does still have an established Church, and there are various areas of public policy which privilege Christianity over other religions and beliefs, for example, the presence of bishops in the House of Lords, the large number of state-funded Christian schools, and the requirement to hold Christian collective worship in other state schools. But these are not reflective of the population of the UK today. These matters must be examined, to ensure our state institutions keep pace with the changed demographics.’"
In an interview with the BBC, Chancellor Rishi Sunak has described the UK as a secular country and explained how Christmas is a festival celebrated by everyone, of all religions or beliefs. Humanists UK has welcomed his comments, as standing in contrast to comments from previous political...
humanists.uk
Socially the UK is secular, factually as a state it's not.