Yes, I definitely think this post is legit and is not a troll post. This is the most genuine post I've ever seen and there is no way this was made to get a reaction out of us. Complaining about Asians having good skin and how that makes you, a non-Asian person (probably), ugly is definitely a normal complaint.
Joking aside, I'm going to give you the benefit of the doubt and assume that you're being honest. With that in mind, having good skin has nothing to do with your race. I happen to live in a very diverse area, so I've interacted with a lot of Asian people growing up and how nice their skin was varied a lot from person to person. I've met Asians who issues with acne, had scarring all over their face, skin conditions, and issues with their skin complexion. I've also met many non-Asians with perfect skin. Good skin comes down to a mixture of lifestyle choices and genetics. Some people just luck out more than others when it comes to their skin. People's skin can also vary a lot in appearance over time. For example, my face is usually clear up until I'm about to get my period and my eczema flares up a few times every year.
It's very weird to specifically obsess over the skin (and general appearance) of Asians. It comes off as though you fetishize and put them on this sort of pedestal and it's kind of off-putting, ngl.