One of the overarching themes that’s been presented so far in the novel is the idea of a conflict between the East and West. The main representation of this comes between Jonathan Harker, a British protagonist and his allies whom are also all British or American, versus Dracula, someone residing in the middle of nowhere in Eastern Europe.
“The impression I had was that we were leaving the West and entering the East; the most western of splendid bridges over the Danube, which is here of noble width and depth, took us among the traditions of Turkish rule.” (Stoker Ch 1) This line right at the beginning of the novel shows us how distinctly Stoker wants us to acknowledge the differences in the East and West. When Harker is in Transylvania, he enters a world of unfamiliarity marked with superstition and darkness, it is there he first deals with the horror that is Dracula the vampire, and he is warned before to go back and given protection in the form of superstitious religions charms that he reluctantly accepts.
But upon returning to Britain as a setting, we are given the idea of how much purer it is. We know that modernity and civilization exist here, and we are made to think we are away from the danger — until of course, the monster himself arrives, and he brings with him death. The ship Demeter loses all its lives on its arrival, and the language used shows how Dracula brings with him the Eastern darkness from earlier: “Woke up from few minutes’ sleep by hearing a cry, seemingly outside my port. Could see nothing in fog. Rushed on deck, and ran against mate. Tells me heard cry and ran, but no sign of man on watch. One more gone. Lord, help us! Mate says we must be past Straits of Dover, as in a moment of fog lifting he saw North Foreland, just as he heard the man cry out. If so we are now off in the North Sea, and only God can guide us in the fog, which seems to move with us; and God seems to have deserted us.” (Stoker Ch 8)
And lastly, Dracula’s own heritage that he discusses with Jonathan while trying to learn about British culture. He discusses his ethnic history and how they conquered, a plain contradiction as far as Western history is concerned, where the conquerors are the Victorians and their British Empire. The idea we are given is that Dracula is a stark spit in the face of Western culture here, and that his ways, despite being almost similar are in fact one of evil and detrimental to Western culture.
So maybe in essence, this dichotomy tell us something about the British at the time, and how at the sunset of the British Empire, British people were afraid of losing their power and being colonized themselves, and Dracula’s arrival in British territory and how he starts his rampage just leads into that idea even more.
Maybe even the Victorians were feeling a little Brexit in them since before Brexit was even a thing, who knew?