I think it has to do with a deep-seated desire for complete self-sufficiency. The ability to create things and not just perform abstract mental work or do servi

I think it has to do with a deep-seated desire for complete self-sufficiency. The ability to create things and not just perform abstract mental work or do service jobs is a key symbol of that yearning. The USA started out as a colony and had to fend for itself. That mindset has not left.