Still, the infrastructure problem is already being solved, and because it's China, can be solved far quicker than anywhere else.

Do you have any sources for that actual construction is underway on this?

One of the issues with China is that Beijing is relatively weak compared to the provinces, although the top leadership is cycled much of the actual power remains in the hands of local CCP membership that is less mobile.

So the problem politically is that you have many local and provincial fiefdoms that essentially do their own thing.  Even in the realm of state owned enterprises, many of the most important, including as I understand it important power firms, are not owned by the center. It's own of the developmental deficiencies of the Chinese system. Beijing does big talk, but they have relatively little actual control.

And I'll give my consent to any government that does not deny a man a living wage-Billy Bragg

a good chunk of the rest are in the manufacture and transport of heavy pieces of equipment, again something that is hard to do from very far away.

I'm inclined to agree, to a point.  The counterpoint that I'd make if trying to argue the opposite is that Gamesa is now exporting tower components from China to other locations globally, including North America. As these are arguably the heaviest single components, it puts a whole in crude version of the transportation cost argument.

But, as you say, there's also a moving division of labor at work here.  European manufacturers have the much higher value added components in the nacelle, but even here there's some indication that the Chinese are trying to use their, albeit temporary, overwhelming monopoly in rare earths to force production of some components into China with export controls.

On the whole, I'm quite optimistic about the European industry, but I also know that there are relatively simple arguments that can be made to the contrary. It's explaining the details that makes combating these a hard tasks. Serious people don't do details.  When facts get in the way of their economic theory, the facts must be wrong.

And I'll give my consent to any government that does not deny a man a living wage-Billy Bragg