• Many industries have gotten more efficient when nationalized. The opposite is not some iron law. More importantly, nationalization means being able to direct production via the state. If the state is aligned with the right goals, this works out well for everyone except fringe capitalists.

• Many industries are subsidized in order to make them viable. This is a well-established form of national competition and as such it’s even done defensively because once the other states start doing it you’re screwed if you don’t. See: Boeing, Airbus, and Bombardier.

• Tariffs are also a standard method for supporting the domestic growth of an industry. Every country that successfully industrialized used them to ensure their own industries aren’t destroyed by imports, often at the behest of the national capitalists in those industries.

• Airbus is already this kind of state-supported thing, more or less. This is also simply saying that it will take a few years, which doesn’t seem like much of a counterargument to, “this entire industry will be hollowed out and ceded to everyone else”.

The Green Party could make this an easy sell because it ties together capitalists’ interests, workers’ nationalistic desire to be in a competent industry (that pays them), and a vague sense of environmental responsibility.

Of course, the above assumes that any EU country is at least as economically competent as a 19th century industrializing backwater, which is in no way the case. Y’all are ceding your industries to the US as we speak in exchange for nothing.