London, Manchester, Stockholm, Hamburg, Amsterdam, Marseilles, Barcelona.
So regardless of the stupid EU coming into existence or not, their misguided immigration policies, and leftist attitudes have already ensured their cultural demise.
You forgot their contraception and abortion. "Ethnic" Europeans of all nationalities run about 1.5 fertility rate, or less. Moslems run about 6.
Demographics is history!
Well. Here's this link showing Muslim population breakdown by country- http://www.iiie.net/Intl/PopStats.html. Now this is put out by "The Institute of Islamic Information and Education", so I would assume if anything these figures are "optimistic" but let's assume for a moment they're fact.
London has a population of over 7 million. According to the link there are 1.5 million Muslims in the entire UK. Even if they were all in London (which they're not) they would only amount to about 20% of London's population.
Also according to this link: http://populations.com/Country.asp?ID=197&CityID=8046- There are Anglican 27 million, Roman Catholic 9 million, Muslim 1million, Presbyterian 800,000, Methodist 760,000, Sikh 400,000, Hindu 350,000, Jewish 300,000 in the United Kingdom. So we're looking at about 37.5 million various Christian faith people compared to the One million Muslims.
The number of Muslims in France is a bit cloudier. I've come across various claims. The original link I provided by the Muslim Institute... cites the figure of 1.7 million. Some assorted "scare monger" type sites cited figures as high as 8- 10 million. The following link cites a breakdown of where the Muslims in France come from so let's go with that- source- http://www.brook.edu/dybdocroot/fp/cusf/analysis/islam.htm#foot%201- it cites 4.1 million Muslims in France or I believe about 10% (or less) of the population of France.
The following link- http://www.infoplease.com/ce6/world/A0858211.html cites Roman Catholicism as being the number one religion in France with 80% of the population claiming to be Catholic. But I believe in Marseilles the Muslim population is very large- perhaps as large as 50%. I've seen figures that show that certain teenage- young adult demographics in Marseilles are 50% Muslim.
Barcelona. Spain is also heavily Catholic. This link here http://www.bcn.es/estadistica/angles/dades/anu98/i0201078.htm shows population by nationality in Barcelona. It looks to me like there are more Germans, French, Italians etc than Muslims in Barcelona's 1.5 million population.
Hamburg's population is about 1.7 million, 150,000- 200,000 of which are Muslim.
Amsterdam. Several sources I read stated that the Muslim population in the Netherlands' major cities was roughly equal to the native born Dutch population. You could probably get some better info from knighthawk if you feel like giving him a ping.
? I mean the number of believing, abiding, mosque-going Muslims outnumber the number of Church-going Christian believers.
I don't think this is a good criterion to be judging whether or not a city is Muslim or not. I mean, just because you're not Christian doesn't mean you're Muslim. I'm not a Christian but I'm certainly not to be found praying to Allah. There are Hindus, atheists, people who believe in God but who reject Christianity etc etc. At any rate- the picture is nowhere near as bleak as you speculate but the picture is worrying. Something must be done to stem Muslim immigration in Europe soon or in the next decade or so we might actually see your description of "Muslim cities".