That doesn't add up. Blitz spirit came about at a time when classism was far stronger than it is now, and individualism affects many countries far more egalitarian than ours. Additionally, I really don't agree with the idea that in recent centuries the working class outside if cities mainly exists in isolated villages - they are far more likely to accumulate in urban centres - and I certainly can't agree that it's all an upper class plan. That smacks of conspiracy theory, and I'm really not sure how the shadowy ringleaders are supposed to have had the power to induce the working class to live in villages in the first place.

I would say that individualism is more accurately the result of a complex series of social changes. Specifically things like the lack of trust in central government (which itself is a result of easier access to news and information plus the continued decline of our country from a superpower to a minor entity (because it inevitably leads people to see the country as becoming weaker, and as our relative economic strength wanes we can't keep up with social security and community support).

On top of that I would point at the way that people now commonly move permanently away from their regions of birth as they look for work and opportunities, as this has destroyed the previous system where everyone knew everyone and you felt connected to those around you. This level of freedom of movement basically leaves people feeling like they don't need to integrate into their communities as who knows - or cares - if you'll still be your neighbour on 3 years' time? I'd also suggest that globalisation and the mixing of cultures has likely contributed (much as it has many positives too) as it is much easier to feel a community spirit if you know everyone around you shares your values, cultural norms, etc.

I would also point to things like the decline of religion. You can hate on religion all you want and you can highlight the many problems it has caused, but at the end of the day if you are systematically being told - and believing - that you will be judged on your actions and that you should always view others as more important than yourself, it impacts your thinking when in situations where you need to choose between what is in your best interest and what is in the best interest of someone else.

These are just some of the factors. I'm sure there are many more.