Again you have made a few simple mistakes here
First a mere anthropological studies does not reveal the whole story of a race, As it has been done here and that with a number of short comings, It needs a good dose of Genealogical evidence to be more credible, I study genealogy quite rigorously for obvious reasons. And am quite aware of many Ceylonese roots
I'm not here to argue the purity of Arab blood in modern day Sri Lankan Moors of cause they intermarried to both Sinhalese and Tamil communities but to say they are of manly Tamil DNA is false
From what you have provided there is no definition of the origins of Muslims in Sri Lanka, They have grouped all Muslims in to one ethno religious group that itself
And they have used the term Moor to categorize all Muslims in the island bar the Malay, Which is also wrong, This may be true for the Muslims in Tamil Nadu but not Sri Lanka, The original Moors and their descendants have roots in Arabia the other Muslims in South India
"The unbreakable relationship between the Sinhalese and the Muslims for several thousand years through major inter-twined factors that are intermarriage, conversions, hereditary house names, and Sinhala language. These integrated factors never gave space to break the relationship among these communities. He describes extensively that the Arabs freely intermarried with the daughters of the land, thus giving rise to the present-day Muslim community and such intermarriages seems to have lasted for several centuries and has even continued to the present day. Sinhalese blood might have also entered the Muslims by way of conversions which seem to have even taken place during the days of Portuguese colonization. Further, he adds that the Muslims of old had a habit to purchase children of other communities (especially from Sinhalese) from their parents so that they could be brought up as Muslims. These children were assimilated into the Muslim community, so that it was possible that they too contributed a significant infusion of Sinhalese blood to the Sri Lankan Muslim community. And this would also suggest that there are Muslims whose Sinhalese ancestry has been acquired not only through the maternal line as seen earlier, but also in the paternal line
. According to his finding, many Muslims of the Kandyan districts had had definite hereditary patronymics of the Vasagama type found among the Sinhalese as interacting factor. Furthermore, he identifies that most of the Muslims are bi- or trilingual and speak languages depending on their geographical locations. This language skill coupled with their wide disbursement throughout the island has given them a unique interaction with the majority Sinhalese.
http://iosrjournals.org/iosr-jhss/papers/Vol20-issue5/Version-6/H020566570.pdf
The first Muslims settled in parts of the island where the Sinhalese were the majority, So that itself gives the reasons for the intermarriage between the majority community and the new settlers and the exposure to the majority culture and thier language rather than the language of an Ethnic group that was found elsewhere in the island, Likewise when the south Indian indentured labor was bought in first by the Dutch they assimilate quite easily with the inhabitant of those area's by the 15th century were predominantly Tamil, and given that the new comers mother tongue was also Tamil there was no need for those people to learn Sinhalese
By time those Tamil Muslim migrants outnumbered the original Moors as it happens, That changed the demographics and they included themselves in as the Moors
"
The Arabs also expanded eastwards, towards India and China, in search of trade. In the 9th and 10th centuries, an assortment of Persians, Arabs, Abyssinians, all Muslims, speaking Arabic and therefore conveniently called 'Arabs' dominated the overseas trade from Baghdad to China. The Muslims of Sri Lanka were a part of this trade operation. There is evidence that there were Muslim merchant settlements in Sri Lanka as early as the 7th century. M. A. M. Shukri has used the Arabic (Kufi) inscriptions in Sri Lanka to throw light on the origins of Sri Lanka's Muslims. He says that the Sri Lanka Moors originally came from Aleppo, a city in Syria. ('Sri Lanka and the Silk Road of the Sea' p181). Apparently there is an Arabic document in the possession of one of the oldest Moor families in Beruwela. It said that in 604 AD two sons of the Royal family of Yemen came to Lanka, one settled in Mannar the other in Beruwela (Daily News 25.9. 98. p 16).
Muslim settlements started in Mantai, and thereafter spread systematically in the trading ports.
Archaeological evidence, such as tomb stones, indicate that there were Muslim settlements in 10th century, in Anuradhapura, Trincomalee and Colombo. Thereafter, there were Muslim settlements in the port towns along the southwestern seaboard, such as Beruwela and Galle"
"
As we all know, the Muslims use their Arabic or Persian names very openly and proudly. Even today, the Muslims in Kandyan areas have 2 names, a traditional Sinhala family name denoting the person's ancestry and profession and an Arabic name. For all practical purposes, only the Arabic name is known and used. The Sinhala name is used only in legal documents and is useful in proving long residence in the island and ownership of land. (Dewaraja. p 12-13)."
"The second wave of Muslims came to Sri Lanka from South India. They were the descendants of earlier Arab traders who had settled in South Indian ports and married local women. Thus Tamil and Malayalam came to be written in Arabic script, and was known as Arabic Tamil. The Koran was translated into Arabic Tamil. It was translated into Sinhala only recently. Since it was compulsory for Muslim children to read the Koran, they had to know Arabic Tamil. This partly explains why Muslims who have lived for centuries in wholly Sinhala speaking areas retained Arabic Tamil as their 'mother tongue'. Generations of Sri Lankan Tamils went to theological institutions in Vellore to study Islamic learning. It has also been suggested that Muslims speak Tamil because Tamil was widely used in maritime commerce in the Indian Ocean (Dewaraja p 17)."
https://www.missionislam.com/knowledge/srilanka.htm
Bro.. You might not agree with me but since the Tamil Sinhala conflict arose there have been a systematic attempt by the Tamil supremacist's to include Sri Lankan Muslims as a whole to their narrative of Tamil nationhood, This has been rejected over the years staunchly by Muslim scholars and others in neutral perspectives for it's false connotations , Thus it leads to believe some of those works that try to portray the whole community as one homogeneous entity can be attributed to that propaganda
I shall continue to submit other sources and studies as time permits, Especially on genealogical records
