My point was that all "Europeans" are, when considered on a long enough timeline, immigrants.
So whose culture do you defend and whose do you seek to prevent "'oppressing and attacking from within and out European history identity and ethnicity"?
In order for you to hold that people "are" European, you should clarify & define the term European - ie What are your criteria for a person "being" European? It would help if you answer these questions:
1) What areas of land "are" Europe?
2) How many generations of a person's family have to have lived in the above defined "Europe" for them to qualify as "being" European?
3) Are any "ethnic"/"racial" groups exempt from being considered "European" despite having lived there for many generations? In which case please provide some criteria for "race" or "ethnic" group. What makes a person a particular "race" or "ethnic" group? How can one distinguish between "races"or "ethnic" groups?
Next I'd like you to clarify your definition of "European" history/culture.
1) How far back in history are we going?
a) All of history? [Remember that 99.99% of Europe's history involves no people at all, so all humans are "just off the boat" as far as "Europe" is concerned]
b) Some of history? If so which bits?
2) Much of recent "European" culture & technology has come (or should that be "immigrated"?
) from other cultures outside Europe, which replaced the "European" culture or technologies. E.g. Christianity, alchemy, gunpowder, algebra, paper... the list is pretty substantial. Should they now be prevented or banned to retain a more "European" culture? What are the criteria you would use to decide which non-European technological and cultural innovations can be considered as being allowed to "become" European?
3) Much of European history has been profoundly affected by these non-European technologies & cultures - should that history be discounted as "being" non-European?
While all these questions? Well I am intrigued by your position. And to hold a proper argument we should define the terms used.
For my part: I posit that there are no original, true Europeans, and there is no solely European culture. The people of Europe, much like people everywhere, are "mongrels", and the history and culture of Europe, much like everywhere else, is a history and culture of successive immigrations and mixes of many different cultures.
Trying to keep a purely "European" culture is like trying to keep a pure mixed fruit juice.