I tend to agree with you. Her reign has witnessed the Islamization of Britain.
The failure to free Constantinople from Islamic hands with the desecration of Hagia Sophia and aiding the enslaving, Christian murdering Turks against Christian Russia was unforgiveable. They put the Wahhabi lunatics in charge if Mecca and Medina instead of the more moderate Hashemites.
The Brain dead Windsors-Saxe-Coburg-Gotha- House of Hanover inbreds have cornered one of the biggest fortunes in history while their subjects are disarmed, victimized by primitive imported savages and subjected to infringements of free speach and third rate medical care.
Their horses are the brains in the family.
As a generalisation, that's highly questionable. Well, more than that, it's wrong. It's true that Christianity didn't make much headway in India: but elsewhere, particularly in Africa and the Caribbean, it's a different story. The history of 19th century British colonialism and its key figures is as much a catalogue of missionaries as of soldiers, administrators and entrepreneurs. Those missionary efforts tended to be more successful in cultures with animist or other unstructured religious traditions than those with systematically formalised religions like Islam or Hinduism.
Also your point 3 -
The British and Churchill in particular in WWI attacked the Dardanelles instead of targeting Antioch and thereby fracturing the Ottoman world into the Turkish and the Armenian-Arab worlds
The Mesopotamian Campaign, which lasted throughout WW1, hardly fits that thesis.
Although Roman Catholicism is the largest denomination in India, numbering around 12 million, the Church of North India and the Church of South India, which are Anglican/Episcopalian have a combined membership of around five million members.
One of the most powerful evangelical movements of the 18th century was Wesley's Methodism, which he intended as an enhancement or reform of Anglicanism. Instead, like Luther, he was rejected and expelled. It was to our benefit, since Methodist Episcopalianism was at one time the largest U.S. denomination after Episcopalian Anglicanism.
Sadly, Wesley's welcoming church, which helped break the ironclad British class system with regard to admitting individuals to church participation, has in the past 50 years devolved into just another Democrat outpost of heresy and "Nice"-ism. But it was a force for good for 300 years, from before the American Revolution until the swingin' 60s.