// what exactly is this supposed to mean?

Do you really not understand what he means?

According to the first few Google results, Asian women in Asia tend to be ~5ft on average, Asian women in America are 5'1 while white and black women in America are about 5'4".

Asian people are smaller. Are you triggered by statistics? LOL

https://vietnamnet.vn/en/average-height-of-vietnamese-among-...

Yes, it was funny the first time I noticed the sizing in a sweatshirt of mine. I was a Medium in all countries listed but the single Asian country were it was considered an XL.