Absolutely right. A company that outsources its core functions - and I think that one could safely call building fuselages a traditional “core function” at Boeing - is cutting its throat.
Boeing is very smart in that they have started a lot of sub contractor companies to get into the the carbon fiber forming business. You might appreciate how nice it is to have a bunch of subcontractors competing for your business. Especially when the sub contractors are in different countries often with government support. So not only to you get to pick and choose, reward and punish, but you get those citizens taxpayers to subsidize your parts. Not to mention the many state airlines that can be influenced to buy your jet since the state aircraft company made the parts.