You are getting struck hard by the comments, so I'll provide some source about the concept of Viking in American self identity.

>In the United States, mainstream Americans incorporated Vikings into emerging Anglo-Saxon racial identities

https://escholarship.org/uc/item/3kq8c3g3

>As the man skims through these figures, his eyes are suddenly opened wide. According to the test results, he is “0.012% Viking.” With tears in his eyes, he falls on his knees and yells with excitement.

https://www.tandfonline.com/doi/full/10.1080/14636778.2020.1...

Just the first papers I grabbed, there is a good chuck of research literature on viking identity of Americans. There is also several monographies on the subject like Krueger, D. M. (2015). Myths of the Rune Stone: Viking Martyrs and the Birthplace of America. Besides that there are organizations like the American Viking:

>We are loyal to our country, United States of America, bound by our Viking Heritage, and fueled by modern Longships, the Rune-Carvers, and the Skalds.

https://www.americanviking.org/about

I think its a bit harsh dismissing the idea of Viking ancestry as a thing in USA. It might be linked to white supremacy, and mainly experienced in certain circles online, but its still a real phenomenon that has been going on for a long time.