Yes.
No.
Way to completely ignore science. Are you also a climate change denier and and anti-GMO activist? The OP talked about race (an illusion) and skin color(equal to hair color). I didn't see anything in there about culture. If anyone is looking for a "proxy excuse" it's you, not me.
Still on topic, as a Greek you'd be considered the same "race" as a German in the given scenario.
You shouldn't.
Getting a good mix and variety of genes is pretty beneficial.
When a genetic pool gets too shallow, well, you know what happens.
Christ no! The best looking people are mongrels!
Plus, they'd just pick something else stupid to fight about.
what would happen to mutts like me? it'd also break up biracial families.
i mean, it'd be interesting to see how everything turns out, but idk if i'd do it.
Yes. A planet with just white people sounds pretty nice to live on.
How distinct an ethnicity then? Ethnicity itself is only a useful sociological construct for discussing broad (read: stereotypical) strokes.
Do we just define it as "Western" vs "Eastern"? How does Africa and South America fit into that? If we go by country, are BC Canadians the same as Prairie Canadians, the same as French Canadians, the same as Toronto Canadians? (or use West Coast, Bible Belt, Cajun, and East Coast as American parallels). Is all of Europe "European"? The Turks are the same as the French? Is Russia European too? Is Denmark? Is Norway?
Pick whatever ethnicity you think you are, and tell me how granular a distinction you need to go, before you have a singular homogenous ethnic mass. The answer is that unless we define Ethnicity as consisting only of individuals, an 'ethnicity of one' - ethnicity is only useful for broad cross-cultural comparison - but is meaningless as a term of actual distinction amongst populations.