What would the average skin tone and facial features look like after 300 years?
What would the average skin tone and facial features look like after 300 years if every partner relationship was interracial until there were no other ethnicities? Just a hodgepodge of DNA. What would the average human look like having a little bit of everything in them?
The only reason I refer to it that way is because it is easily understood and is how a lot of paperwork refers to it. In my opinion, it makes it sound like we we are a completely different alien species.
The whole race theory has been debunked over a century ago. You also have genetic difference in foot shape, blood type and many more, and a race system build on that would be as wrong as one based on skin colour
Oh I'm not particularly informed on any of this because I don't really care tbh, but I though race was where you (and your ancestors) are from as opposed to skin colour?
No, that's why I said general. For example people from Europe tend to have lighter skin, Scandinavian people tend to have lighter hair, African people tend to have coarser hair.
You are just picking an arbitrary set of characteristics and calling it "race". Nature has no concept of race because we are all genetically different and there is no line that one crosses from being one race to another. Race is purely a human construct, and a very unhelpful one, as it is just another way to divide us.