You hope, As of late it seems the UK/EU has no backbone when it comes to protecting their own people/countries.
If one takes an entity such as the UK, it is hard to protect one's own cultural identity when defining such a thing is difficult, core values might be definable, but they are words, hard to enact and effect.
Take the 'believed' erosion of Protestant Cultural values within the now 'peaceful' Northern Ireland. We regularly hear groups complaining that their cultural identity is being eroded and lost, and sanctioned against, and I find it very hard to understand just exactly what they think they are losing.
It can't be legislated for, to protect the cultural value, when it seems some of them involving beating a drum outside an opposing Church grouping, or marching past someone's house of a different religion.
The legislation aspect seems to work against 'Culture'.
So tell me, traditional English values. How are you going to uphold and protect them? As what I would consider traditional values in England to be mainly forgotten in vast areas of the country already, and in fact, a vocal anti-immigrant minority wouldn't have the first idea what is it to be English in the first place.
One thing that unfortunately has occurred over the past 40/50 years, and it happens everywhere, is the failure to integrate, and this, over time erodes general values, as larger subset communities become established, and start to 'expect' their own values be considered on the same stage as the original values of the country.