It's worth noting that the current wave of immigrants is by no means the first to be marginalized, either. Irish immigrants in the 1800's, for example, faced very overt persecution for many of the same reasons (notably: "stealing" the jobs of non-immigrants), especially at the height of emigration from Ireland due to the Great Famine.

In the long run, we'll likely look back at all this fuss as another chapter in our history books, but I'm sure there'll be some other ethnic group immigrating in droves. The melting pot is a continual process. Slow and frustrating sometimes, but it works for the better in the long-term.