The Wa language, similar to Hmong-Mien languages, has a familiar phonology to Sinitic and Sino-Tibetan languages and could probably be pronounced easily by most Chinese speakers

Although I am mixed with Austronesian, I am mostly western EA with significant ancestry from both southwestern China and Henan. 

This is probably why I can't help but feel a strong sense of belonging when I look at images of Wa/Mlabri people, listen to the Wa language, etc.

Even the landscape of northern Myanmar and Yunnan feels familiar to me

Nope people in Henan, Shaanxi, and Northern China in general don't have deep-set eyes, stop lying.

Cheekbone protrusion and wide face aren't the particular traits of Austroasiatic people either, these are probably more common in the northern parts of East Asia.

I don't deny that if you cherry-pick hard enough you can maybe find a few people from Henan or Shaanxi that would be able to pass as Austroasiatic, but the percentage is just too low. The majority of people in those regions don't look Austroasiatic at all. I actually think that people from Western Henan and Shaanxi have the most distinctive Sinitic look in all of China.

Nope he doesn't look that southern, there're some Cantonese and Zhuang guys that can out-southern him.

Like this Zhuang guy from Bilibili probably looks equally southern as him, if not more southern. I feel that it's harder for this Zhuang guy to pass in Northern China than the Wa leader you posted. The Wa leader can probably pass in Tibet, although I'm not so certain if he could readily pass in Gansu.

www.bilibili.com/video/BV11z411i72H/?spm_id_from=333.788.recommend_more_video.-1

www.bilibili.com/video/BV1GV411z7Rs/

You're nothing but a troll.

You said that you're Chinese American, yet the time you posted these pictures is like after midnight in America, which makes your claim dubious.

And you said that you never surfed on Chinese forums, yet the claims you made here seem very familiar to me and look like certain claims made by some Sinocentrists that I've seen on Zhihu and Tieba before.

Of course if you cherry-pick hard enough you can find a few similar-looking individuals, after all Northern Vietnam had been dominated by the Sinitic people for more than 1,000 years.

However the majority of Vietnamese don't look like this.

A quick search of Vietnamese appearance on Google gives me the following images.

How the hell would I be a "Sinocentrist" "Han Chauvinist" etc. if most of my claims revolve around the idea that a lot of these phenotypes are literally just shared between Han and non-Han peoples?