I don't know what region you are specifically talking about but typically, colonists pushed into native American lands stealing them and killing them when they refused to move.
Colonist also brought diseases from Europe that killed a large number of the native population and engaged in constant warfare with them. Native Americans would raid colonies and vice versa.
the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.
the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.