There is a difference between alowing international travel and mass importing millions of migrants until it gets to the point that your ethnic group is the minority in major cities.
My nations history goes back almost 1000 years and that is being swept away in a few decades.
If that wouldn't bother you in your country then I honestly don't know what to say to you.
As to your point on race mixing, a few mixed race families isn't the problem.
An ethnic group is linked to a certain area, tends to look a certain way and has a shared history. Large scale mixing destroys that and replaces it with a fake awful globalist soup.
There is a difference between alowing international travel and mass importing millions of migrants until it gets to the point that your ethnic group is the minority in major cities.
My nations history goes back almost 1000 years and that is being swept away in a few decades.
If that wouldn't bother you in your country then I honestly don't know what to say to you.