From a commercial/competitive point of view, wouldn't an incumbent like SpaceX be better off building an exclusive launch site? Use it as a barrier to entry for competitors.
Do they need a barrier to entry, beyond the difficulty of launching things into space at all? They seem to be going for the honorable strategy of running faster than everybody else, rather than trying to cripple their competitors.
I'm not sure. My guess is that the lauch site is not biggest entry barrier, I think that's more the development and construction of the rockets and stuff. And the biggest customers in the western worlds like the NASA and the US military have there own sites, I guess they allow SpaceX competitors to use them too.
Again, I'm no expert on that, so please feel free to add some expertise!
And again Europe was not part of it...