No, it is. But the joke is that when most people see the word "asian", because of how often it's used like that, they automatically think of the first guys. I know I did - and i'm Indian!
The poster never said they weren't Asian, he fully admits that as an Indian, he is Asian. The joke was that when other people think "Asian" a lot of them don't think of India at all (depending on where you live as the other guest pointed out).
Comments