The day humanity lives in harmony is the day that people stop segregating themselves into sub-societies and blindly following those societies like they are ingrained in their DNA.
You're not English, you're human. Sure, you were born geographically on a lump of land which belongs to a government and as such you were processed by that government as a member of their society. It's nice, it feels friendly, it doesn't feel like you're just another headcount towards the mechanics of mass organisation, granted. But you are. Your social liberties, your leaps and bounds that you have over other countries are not because you're a great member of that society, it's just so that you can pay your way out of the debt that you owe that society through work, taxes, retail purchases, tourism and input. You're just a packaged investment like the others born every minute in the UK.
You're lucky. You're probably a white male with good British heritage. You're a tiny proportion of a global population, and you have lucked out. You started with no handicap in life, no back footing. You were born at the front of the queue, pretty much as close to the front as you can get, relatively speaking.
And so what now, you think that your social liberty (via luck no less) entitles you to some kind of casual bigotry over people in this world who are trying to share a slice of what you take for granted? Because these freedoms come too easily to you, others should take a back seat and accept a lesser or different way of living?
After all, it's not like the massive narrow-minded nature of blind following is the fuel for most conflict in this world.
That was sarcasm, by the way.
Imagine if we lived in a world where you didn't judge someone for being on a different street to you, or a football team for being different to yours, or a southerner for not being from the north, or a country for not speaking or acting as yours does. Will it take a band of aliens destroying the world to finally realise that our stupid little societies are different versions of the same thing, all living for the same reason and enjoying the same life that they try to extract as much happiness as possible from? You're a person, others are different, no two are the same, but that's the beauty of it.