The oldest human remains undisputedly found in North America are just under 20000 years old, 19500 +/- 300 years old. These are found in three places I know of, all on the Eastern coast, and all show that the persons involved came from Europe, probably Iberia or maybe France, and had the Solutrean culture complex, and were thus of Caucasian race if the Solutreans were-- and I have never heard that disputed.
It is not as though either Viking or human history generally, is affected by the final verdict on this map. I do not believe that a chemical analysis of ink traces can resolve this, and the other factors outweigh that and suggest its genuineness IMHO.
But even if a fake, we know that others from the 1000-1400 era were in existence in Europe which were like it and were genuine. So big deal, all in all.
Now you have. Those (Cactus Hill, Topper and another) are indeed old sites and are possibly in the 20k year old range and they do have Solutrean technolgy but, there are no human remains. The oldest dated skeleton ever found in the Americas is named Luzia, an African looking woman who died at age 24, 11,500 years ago in Brazil. (There has recently been a skeleton, Kennewick Man like, found off the coast of California, on an island, that is expected to surpass the 11,500 year old Luzia skeleton)
Luzia (11,500 years old)
Okay.
If you just change one word in this statement from remains to artifacts, we do not have a dispute. Widely accepted data supports all your other statements. Albeit, I think the Calico site in California (200,000 years old) will eventually be accepted by the main-stream. (Probably not in our life time though)
George Carter's book, Earlier Than You Think, is a good read on the Calico site.
I expect we'll have accepted dates of 50-60,000 years old (in our life time) in the Monte Verde area in South America.