I believe that the Pilgrims were of Dutch and other Northern European Protestant countries.
In actuality, the term "caucasian" is somewhat a misnomer since is refers to people living in the Caucus region of Central asia. However, white trash seems to have been a developement from the formation of social classes in the US. As there are black ghettos, there are white ghettos... both home to poor and uneducated minorities of the population as a whole. As there are stereotypical traits of low class blacks (ie Chapelle's Show), there are such characteristics of whites (ie Reno 911). As poor blacks smoke crack and whore themselves, poor whites have sex with their daughters and live in trailer parks.