I’m not sure what you mean by “going through evolution”.

If you go to London and see majority ethnic boroughs. Those boroughs, store fronts, culture, religious buildings all resemble and look like objects from non western countries.

For example southall functions just like Indian markets with outdoor store fronts, clothing and fruit out on display by the road. These people have not integrated rather stuck to their own culture and displaced the native culture.

They left their country to come to western society which is arguably superior yet they are turning western civilisation into countries that they came from.

It does not look like evolution but displacement.

I have not problem with different cultures being around as long as the parent culture remains intact.

When I go to London I want to go to a British traditional city and feel the history not a city that resembles and functions like an African or Indian city. White English people are now 40% of the London population. It does not feel like a British city anymore.