Of course! That's one way it would work. Although one struggles to imagine how one culture absorbing others is very multicultural.
I only see one other alternative to multiculturalism and that's homogenous culture.
This is why I am baffled as to your definition of multiculturalism. Either we can adopt what you regard as multicultural policies and end up with a monoculture, or we can not adopt multicultural policies and be a monoculture. Does it even matter what policy we choose, then?
It's not about any intended ill will or some insidious immigration colonization conspiracy, it's really just about the English population aging and decreasing in size. In London for example, the English are already a minority themselves.
Just to be clear, by English you mean "white and English", right? I can't see any other way this statistic works.
I think people with different skin colours are capable of being English. I'll go further - children and particularly grandchildren of immigrants do retain aspects of the culture they arrived with, but are also able to integrate into English society fine - indeed, your own argument on cultural assimilation implies that this is what will happen, unless you're suggesting immigrants have some kind of shield against it.
Oh I quite like cosmopolitan capitals and quiet Welsh countrysides of sheep herders chanting Lovecraftian script as they are now, I only see one other alternative to multiculturalism and that's homogenous culture. That could work for spares, rural regions, but it makes cities all the more boring. My stick I'm waving around is that people don't really factor into how integration and stringent regulation of immigration is important to maintaining the delicate balance of a multicultural society like London or New York and is key to benefiting the country socially, economically and culturally.
Is it? I can see that integration is helpful in a multicultural society, but I don't see what kind of threat uncontrolled immigration is supposed to represent unless we're in one of those really unrealistic scenarios I mentioned earlier.
Did I seem supportive of the Hakka Chinese culture being erased? Because I am openly critical about it, and this is leaving me fairly confused.
No. Your implication with those examples is that if we allow immigration to be unchecked then British culture will end up wiped out, just like the Hakka Chinese. In that regard, we should be seeing minority cultures as threats, not valuable things to be protected. Is that what you were getting at with those examples?