Many people claim this, but I think it is completely wrong.
Firstly, cultures are not static and unchanging, they are fluid and accept some influences and reject others, not through some grand plan (as much as the French Government and other statist culture organisers would like to think) but through the interactions of the individuals who make up society.
This makes talk of losing a culture nonsense, culture changes, if people think something worth preserving they will do so themselves.
Secondly, lets look at an example of some countries which have different cultures but have been unified politically - The United Kingdom. Scotland and Wales have their own cultures - arguably they have different cultures within themselves, this is certainly the case with England where there are differences in culture between cities and rural areas, between east and west and north and south, even in today’s hyper-connected world.
Even in Brittany, despite the attempts of central government to impose ‘French Culture’ upon the Bretons they have a distinct culture.
It is true that English culture has changed, for example the curry is arguably central to our culture, but we still have elements of an older culture and a distinct culture. We still interact with the rest of the world, we have not lost our culture and never will, it will simply change, but remain distinct.
