Are South Korean men the tallest in East Asia?

https://www.youtube.com/watch?v=s8Km3SlwqoQ

As a 181cm (5'11) South Korean man, I'm tired of hearing people in the US say they thought Asians were short. East Asia is the region with the highest average height in all of Asia. (source)

My grandmother and grandfather tell me I'm tall, but most South Koreans don't recognize me as a 'tall person' even though I am above S.Korean average height. When I was in high school, I was the 5th tallest out of 28 students in my class (at that time, classes were separated for girls and boys), and there were one friend in my class who was over 190cm (6'3) tall. Whenever I belong to a group in South Korea, there is always at least one man taller than me.

Japan has created a good image of East Asians in the West, including craftsmanship, diligence, work ethics, and law-abiding spirit. As a fellow East Asian, I think I have benefited a lot from the image Japan has created. But if there's one thing I resent Japan for, it's that one of the few negative Asian stereotypes they've created is that "Asians are short." Japan has been recognized by China and Korea for thousands of years as an exceptionally short country in East Asia. However, this bias appears to have been created because Japanese people were the first East Asian introduced to Westerners.

Also I see some comments in youtube saying that the average height in China is taller than in South Korea, but that is incorrect. It is true that the average height of regions in Northern China, such as Huabei, Dongbei and Inner Mongolia is similar to or slightly taller than Korea. For example, the average height in Beijing is 176cm, which is 1cm taller than in South Korean average. However, Souther China such as Huanan, the average height is less than 170cm. For example, the average height in Hong Kong is 169cm, and in Guangdong Province it is 168cm.

So, the overall average height in China is around 170~173cm, which is definitely shorter than in South Korea. In some youtube videos, it is said that the average height of all of China is 176cm, which is taller than South Korea, but this is incorrect information because it is the average height including only Beijing. Average height varies depending on latitude, and China is so large that average height is meaningless in the first place.