Actually, OP has given information that proves exactly that. Maybe not in one generation, but Lebanon was in a similar situation where the Muslim population, which was firmly a minority in the 1940s, outbred the Christian population and is currently more than the latter.
I don't have a horse in this game - I'm Muslim after all. But I've experienced London pre-immigration boom and post-immigration boom and I definitely prefer the former, like some of my Muslim peers. The fabric of London has already been destroyed, especially when given the fact that London natives have been priced out of their own homes. Given what I've seen firsthand, and what's preached in the mosques of the UK by unleashed and unhinged Imams, the UK is on track to become a Muslim country in 2 or 3 generations.
I don't have a horse in this game - I'm Muslim after all. But I've experienced London pre-immigration boom and post-immigration boom and I definitely prefer the former, like some of my Muslim peers. The fabric of London has already been destroyed, especially when given the fact that London natives have been priced out of their own homes. Given what I've seen firsthand, and what's preached in the mosques of the UK by unleashed and unhinged Imams, the UK is on track to become a Muslim country in 2 or 3 generations.