Full disclosure: Harvard's Jeremy Lin used to dominate my friends in pickup basketball at Boston College. So yeah, I share some personal investment in his success.
And so do the guys at our Warriors blog, Golden State of Mind:
There is nothing wrong with rooting for someone of your own ethnicity, especially when there aren't many of them playing in the top league of the game you love, and when we live in arguably the most diverse region on the planet here in the Bay Area. ...
I've said it before and I'll say it again: Jeremy Lin is a bonafide First Round NBA draft pick. Detractors will dismiss him without providing evidence to the contrary. For example, "He'll be a good player in the top division in Italy", or "Well, let's wait and see", or "He plays in the Ivy League, so he doesn't have what it takes." The detractors will either be discounting him because he is Asian and they have never seen an Asian as good as him, because they haven't seen him play, and because of the most basic human element: fear of the unknown.
I could elaborate, but really you should just read the whole post. Their argument is as compelling as it is comprehensive. Check it out. And, um, NBA teams: Draft Jeremy Lin!