Why don t people build bullet train from Shantou to Xiamen

Hahaha, maybe it is not the high time that the bullet train was constructed from Shantou to Xiamen or it has not been put forward into the national construction plan.
Anyway, there is no direct train from Shantou to Xiamen or to Shanghai, so you have to transfer the K or T trains during the journey.
From Shantou to Xiamen, you can take a train to Meizhou first. Then you can take a train from Meizhou to Xiamen directly.
From Shantou to Shanghai, you can take a train to Guangzhou first. The trains from Guangzhou to Shanghai can be easily taken.