Racism is alive and well, and a real problem that people have to deal with. Advice like "embrace your proud geek culture and be your own person learning and pursuing the things that interest you" is generic feel good woowoo that is just not relevant here.
"11) Don't take advice from people who don't have experience with what they are giving advice on. Like the post above in some cases."
Or like yours, as someone "born and raised in North America, [who] speaks perfect english"
Sorry man, but sometimes you have to accept that you don't have much to bring to a conversation, no matter how strongly you feel about it.
tl;dr: the post you replied to is linking freaking research papers to support what it says and your reply is "don't worry just think positive and everything will be fine"