I do not think that there is any link between a country's culture and the ability for a team from that country to be successful in f1.
Today there is no border for technology and people - much more than in the 80s and 90s when ferrari had to build a technical office in England. The only limiting factor to competitiveness is the access to the knowledge of some best practices (especially in packaging and systems) and some loopholes /tricks in aero rules and software.
In Europe thes knoledge gets spreaded by the natural change of personnel between teams; to the US it is not impossible (some european F1 guys were already moving with USF1) but less intense.
At the beginning probably just a bunch of people with knowledge of ballpark figures for current F1 performance in every area is enough to start a team.