Do Shenzhen Hakkas belong to Hakkas or their descendants now?

You can look at the history of the formation of Hakka in Shenzhen ~ I personally think it belongs to Hakka ~

Today, the aborigines in Shenzhen are mainly composed of two parts: one part is Guangfu people who moved from the Pearl River Delta during the Song, Yuan and Ming Dynasties, that is, Cantonese-speaking (also known as vernacular) ethnic groups. Because it entered from the west of Shenzhen, it is now mainly distributed in the west, northwest and south of Shenzhen. The other is Hakka, who came in later than Guangfu people. During the reign of Kangxi, Qianlong and Jiaqing in the Qing Dynasty, they moved to Shenzhen from Jiayingfu (now Meizhou), Huizhou and Chaozhou, and a few came from Jiangxi and Fujian. Their settlements are mainly in the east and northeast of Shenzhen, that is, Longgang and Yantian, and scattered in Baoan, Nanshan and Chaozhou where Guangfu people gather. The reason why Hakkas entered Shenzhen later than Guangfu people is directly related to the "moving the sea to restore the border" in the early Qing Dynasty.

In the 23rd year of Emperor Kangxi of Qing Dynasty (1684), after the pacification of Taiwan Province Province, the Qing government began to implement the policy of "moving the sea to restore the frontier". At this time, the Hakka people living in the mountainous area at the junction of Jiangxi, Fujian and Guangdong proliferated rapidly, and the "reclamation order" could solve the problem of less land and more people. The "compound border area" along the southeast coast of Guangdong has become the migration direction of Hakka immigrants.