I saw the bit at the end and get it a little more. I can appreciate that people don't want their culture diluted, but that's what happens when you get accepted mainstream. You can't have it both ways. Not a lot of anti-irish tossed around with seriousness anymore, but everyone's going to rock a shamrock t-shirt on St. Patricks day.
I think even the author above was simply asking people to appreciate there is a meaning behind it. Which is true. But "racist"? No.