The USG is already putting tariffs on foreign planes. We have all the downsides of nationalization without any of the benefits of collective ownership (except for the fact that Boeing is in people's retirement accounts, which is a little collective ownership). Capitalism and socialism on their own both have provisions for taking care of the elite and taking care of the average person. What we have now with these pseudonational industries is a combination of both that takes the elite-benefiting parts of capitalism and combines them with the elite-benefiting parts of socialism.
"The World Trade Organization said on Thursday the United States had ignored its request to halt a subsidized tax break for Boeing Co in its main plane-making state of Washington as a 15-year-old transatlantic trade row edges towards tit-for-tat sanctions."
According to their most recent 10-K, the Defense, Space, and Security business unit represents about 23% of Boeing's revenue and 13% of their profit. Some portion of the Global Services revenue comes from government contracts as well, though, so the true contribution is higher.