I'm puzzled by the statement that the separation of Church and State is more pronounced in England than in USA. In England, the Church of England is the Established Church. It is the "national church" if you like to put it that way. In Scotland, the Church of Scotland is the Established Church. (They are not the same thing under different names, btw. CofE is simpy a rebel offshoot of the Roman Catholic Church while the CofS is anti-Catholic, Presbyterian and non-episcopalian.)

The Queen is head of both Churches - she changes her religion as she moves back and forth over the border. The Prime Minister, whatever his religion (or even if none), has the power to appoint bishops to the Church of England.
So Church and State remain inextricably linked over here. They will remain that way because they are both very wealthy organisations, and this wealth has to stay in the "right" hands.

The trouble is, hardly anyone goes to Church nowadays. A handful of old ladies and a sprinkling of people who are choir members or organists or have some other reason for going. No-one gives a tuppenny damn who the Archbishop of York is these days, even if he has been brought all the way over from Africa.

Interestingly, because of the EU's "open borders" policies, thousands of Polish people have come over to the UK to have babies or to work as plumbers and as a result, there are now more Roman Catholics in the country than there are Anglicans (CofE). The Established Church is a minority religion, therefore! (My brother-in-law is a plumber of Polish descent, so maybe I shouldn't knock it!)

So, although Church and State remain linked, and will for the foreseeable future, the people, all disillusioned by religion and politics, are becoming increasingly detached from the Establishment.

(My answer to the original question, by the way, is that ALL politicians are scary, whether they have a religion or not. There's not one I would trust; not one I would endorse with my vote. It's far too valuable to give away to the likes of them.)