Which is bigger, Qin or China?

Today, the territory of China is much larger than that of the ancient State of Qin.

Can you look at the picture below? After the reunification of Qin (that is, the colored part in the picture), Xinjiang, Taiwan Province Province, Ningxia, Tibet and Northeast China did not exist at all. Guangxi, Guangdong, Fujian and Yunnan were basically deserted at that time.