Mosaic whilst i agree it's taken a time to get our own house in order, the majority of people in Britain were Christians, and whilst that may or may not be the case today, that did not dictate how the ruling classes had sway over the people in Britain. it was largely about Class, land and money, Had we not had class ridden rulers, keep em in their place society, perhaps we wouldn't have taken so long to come to the point we are now at, even if it isn't perfect.
Many of these countries have been ruled by religious leaders, who have dictated to the masses, and if anyone thinks having sharia law, with all it's interpretations as a good thing then sorry i don't understand that. Sharia law in the way it has been portrayed and interpreted leaves many women with no voice, and stuck in situations that have caused them to have no education, married off, and ill treated.
I hope you are right, that the young get their way, and British governments shouldn't interfere