There are Asians who are racist because they weren't exposed to racial diversity in their homelandslives. However I'm sure that like people from the Philippines, people from Malaysia, Singaore or the UAE aren't racist much more against whites since they're also exposed to many races.
I've actually experienced Asian racism IRL. I know it is a "thing." But everyone is clannish/tribal to some extent. I accept it as a part of human nature and move on. I tend to be respectful of "spaces" and leave it at that.
Although it is true that explicit white-only spaces cannot exist without irrational backlash, implicit spaces exist (although currently they are being hounded and sniffed out). Most of them have to do with music and other cultural staples. I don't think it is done on purpose, but rather a natural result of cultural preferences.
Let's call a Spade a Spade. Due to the twisted PC culture every other ethnicity except Europeans can have their own exclusive Ethnic enclaves.