Your example of Boeing is humorously ironic; it's a private entity which started and grew without government planning. Central planning of "economic concentration" isn't a requirement for developing complex products or entire industries. These things evolve on their own and are fully manageable within private enterprises.The relevant quotation from the original post:
"The company's first government contract was not for airplanes at all -- but for 161 sets of pontoons for observation planes in service with the U.S. Navy."
It's ambiguous whether an anti-statist using this definition objects to concentrating political power in general, or concentrating political power in some specific way. ... The first sense [i.e. objecting to the concentration of political-economic power in general] [poses the] problem ... that our modern technological civilization requires a considerable degree of economic concentration.
It's helpful if you actually read the post before you comment.