Literally says "white traitors". If he meant "traitors to the country", their race wouldn't need to be mentioned. Nevermind the context of the posts he was replying to support the notion that he was explicitly referring to "race traitors".

Who here said it was a problem that some whites try to look out for each other? Why do you have to make a strawman?

The problem with the original post seems to be that the author places the issue onto race as opposed to ideology. It's little different compared to when black conservatives are either castigated or simply ignored by black liberals. They think that race and ideology can't be separated despite evidence to the contrary.