The extent to which English/British culture is being changed is greatly exaggerated. Culture changes anyway. We have had waves of immigrants throughout our history. It is not a recent thing.

There would seem to be 'powers' pulling in different directions as there are 'nationalist' groups taking power in various places. There is a lot of manipulation of news and social media. The Fox corporation is one of the biggest and seems to favour people like Trump who takes every opportunity to dismiss other news sources. It's all about reducing trust in what may be useful sources of information.

I happen to believe that we do need urgent action on environmental issues. There may be some pain for the middle classes, but it should also target the rich who use more than their fair share of resources. Some may say we need to worry about Indian, China etc, but most of the middle class and above could make big reductions without really suffering. We have to find new business models that are sustainable as just carrying on like this is bound to end in disaster.