Pretty much and it's scary that a lot of Hmong think this way. When I went to the We Are Hmong Minnesota Exhibit and saw 'Hmong are accredited for being the first to plant rice', I wanted to face-palm/hide my face and run out. And then I heard that the same person who curated the exhibit wanted to build a Chi You statue in Minnesota
This is what happened when your group of people chose not to create a writing language. Let's start with the basic.
1. We know for sure majority of Hmong American came from SEA.
2. Hmong came to SEA as early as 1850s.
3. Hmong most likely partake in the the 3 Miao Rebellion. According to folklore Hmong/Miao will riot 30 years and revolt every 60 years. The three Miao rebellion times were 1735-1736. 1795-1806. 1854-73. And then later 1918-1921 with Paj Cai Vwj. The last one maybe coincidental or part of a political propaganda to rebel the imperialist. In any case we can be sure we were recorded there.
From there on it gets tricky. There isn't much record about us beyond the Ming Dynasty. Other than the Miao rebellion and the Southern Great Wall incident. It can be infer that most of us Hmong are basically fracture multi-ethnic neolithic east Asian that adopted the culture that eventually becomes what we know is Hmong to day.
The only similarity we can draw from gaps of ancient China today Hmong is our custom. Based on tradition and practice we can argue our belief derives from the Shang and Zhou Dynasty practices. And if you truly believe that you are ancestor came from Siberia. lol Which I still laugh at some Hmong people really believing that. Look up at Francouis Savina. The scariest thing is Xanadu or Dadu is very similar to the myth that we came from Sauv Ntuj and the phrase "rov taw/tuam ntai ntuj." Even ceeb tsheej is JinCheng refer to the inner city wall.
Although it's very weak evidence but yeah if you check wiki and mess around with Hmong and Mandarin its very scary.
An example of messing with google translate is that 回答 = Hu Teb = To answer.
At best I'd say we might coalition with the Mongols, Jurchen at one point.
https://en.wikipedia.org/wiki/Shangduhttps://en.wikipedia.org/wiki/Khanbaliqhttps://en.wikipedia.org/wiki/Beijing_city_fortifications#Inner_cityThat is about all folks. Peace out.