Why Do These Aging Men in Southeast Asia with Chinese features all look the same?

Suharto of Indonesia has Chinese features because he is Javanese and he has Chinese ancestors too.

Ne Win of Myanmar (Burma) is a Half Chinese Man with Chinese ancestry as well.

Norodom Sihanouk of Cambodia has Chinese features and he was uninformed that He has a Chinese blood or not.

Alfredo Lim is a Half Chinese Man same as Ne Win both of these men have gray hair and Chinky Eyes even i their childhood and teenage years with black hair before turning gray as in their elderl
y life.
 

 Vo Nguyen Giap has Chinese features same as these men above. They all resemble each other as elderly men in Southeast Asia with Chinese ffeatures and blood