think his Anglicanism was deeper than just patriotism.
Very specifically, he was a close friend of Tolkein, as noted above. Tolkein’s mother was disowned by her family and condemned to poverty for her conversion to Catholicism. Tolkein’s writing is
heavily Catholic. One of his revision passes as he wrote was to check/verify/fix the theology. When asked about the scene made famous by the movies, where Gandalf tells the balrog, “You shall not pass fr I am a servant of the Secret Flame,” he explained, bluntly, that that meant the Holy Spirit . . .
Anyway, getting back to Lewis, he neither rejected Catholicism nor stayed Anglican for “patriotic reasons.”
Rather, he was one of the great minds of the “Oxford Movement”–not just High Anglican, but
Very High Anglican. Some converted, and those who didn’t stayed where they were in expectation of Union, not as a choice of church. Sadly, that union did not happen, and the Anglican church, well . . .
And his Narnia stories are some the best Catholic teaching to be found. I’m currently about a quarter way into the Horse and His Boy (again).
hawk