It is outrageous that no one got to vote on mass immigration and multiculturalism. Consider the island of Okinawa, off the coast of Japan. It has its own sense of history and identity stretching back centuries. Now imagine ten million Swedes migrate there. Obviously that is going to profoundly impact the inhabitants. It is going to transform their identity. Would you say they deserve the chance to vote on that? Would you say their government had the right to impose that on them? There is a sort of unspoken agreement that because we had an empire we have no right to object. In fact, I would say the left consider mass immigration a just punishment. We keep being told how lucky we are, and how we're being enriched, but that's just a smoke screen. It's like Big Brother in 1984 telling the citizens that 'war is peace'.
I have no problem with small scale immigration btw. The British are not a race, and I do not believe in or want 'racial purity'. That's all nonsense. Until very recently we were a Germanic and Celtic mix, but even then we were a mix of Germans, Dutch, Scandinavians, French and Irish. There has never been a pure British 'race'. Also, I have known British people of African and Asian heritage who really have enriched this country, but they usually came here because they wanted to be British. I had a British Indian friend at university, for example, who wrote her dissertation on Jane Austen and then did a PhD in Victorian literature. She spoke with a beautiful RP accent and had all the traits I like in the British (humour, manners, self-effacing charm, etc) and none of the traits I loathe (oafishness, insularity, philistinism). She still had her Indian identity, of course, but she was British.
When immigration happens on a massive scale, and the people who come either have no interest in, or literally hate, the culture they're moving to, that culture cannot survive. The left know this. But they don't mind. On the contrary, they celebrate that destruction, because though they like to pose as morally superior, they're often the nastiest, most hate-filled and destructive people on the planet. They want Britain's identity to be radically changed. If ten million Russians move to Chile, they'll change its culture and identity. If ten million Chileans move to Greece, they'll change Greek culture and identity. It's as obvious as 2 + 2 = 4.