Huang Chao's Guangzhou masscare on Arab,persian,jews merchant still visible today?

[Gao1111]

Huang chao the cannibal rebel who took Guangzhou and asked foreign merchants for all of their money,women，and everything,to aid his anti-tang rebellion,for exchange He would Let foreigners alive to out of this country,they refused,And Huang chao massacred them within one day,and all their families,and turn into Yangzhou to kill foreigners in that place too,and basicly all foreign merchants are killed by Him.
But I found some haplogroup J is in north vietnam,could be some people fleed to vietnam?

 

[Gao1111]

Huang chao invented a new way to cannibal humans,Grinding people into flour, his army ate 3,000 people every day, but the corpses of 120,000 Arab and Jewish merchants soon began to stink, and the rebels had to throw the corpses into Guangzhou Bay. About his battles in Quanzhou and Yangzhou The number of massacres is not recorded, and there is no Semitic Y haplogroup in the area.

 

[Pax Augusta]

Haplogroup J was formed between 30 and 40 thousand years ago, its modern distribution is of no help because many of its subclades have completely different stories and paths. Moreover, the concept of Semitic is first and foremost a linguistic concept, not a genetic one.

 

[mount123]

J-M304 or "J" formed somewhere around ~46000 to ~41000 years ago when it split off its paternal ancestor IJ-M429. What does this mean? It means that it is a macrohaplogroup designation and lumping clades with an early Paleolithic common ancestor together is a pretty senseless and wrong methodology. Consequently, equating "J" with Jews and Arabs is pretty stupid.

That wikipedia map is also outdated and not in alignment with most pop gen papers covering Y-DNA distribution among modern pops.

 

[ThirdTerm]

The frequency of haplogroup J is 2.9% in Vietnam. It may be related to more ancient migrations such as merchants from the Middle East and Indian cities such as Mumbai over the last 2,000 years. Haplogroup J is also common in western India (~25%). Vietnam was a French colony in the 19th century and it attracted Indian migrants in search of better life such as civil servants for the French colony.

For instance, Vietnam has been also involved in important commercial historical routes, such as the Silk Roads, and since more than 2,000 years ago, the Vietnamese coast has attracted merchants from as far away as the Middle East and Japan. These commercial exchanges have contributed much to the cultural7 and genetic exchange among Eurasian populations.

Phylogeographic and genome-wide investigations of Vietnam ethnic groups reveal signatures of complex historical demographic movements - Scientific Reports

The territory of present-day Vietnam was the cradle of one of the world’s earliest civilizations, and one of the first world regions to develop agriculture. We analyzed the mitochondrial DNA (mtDNA) complete control region of six ethnic groups and the mitogenomes from Vietnamese in The 1000...

www.nature.com