Doh, I meant Hetzner
> partly made possible by France's inexpensive energy mix
Not really. Both developed well before the energy crisis when energy wasn't a significant input for DC construction.
The reason both succeeded is because French conglomerates continue to invest within France and only buy French.
It also didn't hurt that Xavier Niel and Klaba were able to leverage their preexisting telecom business and network.
It's still viewed as a prestige post, and European industries and states will continue to work with partners outside of Europe if it means surviving.
Additonally, capital consolidation within the EU also means subnational capital flight which means layoffs. For example, look at how East Germany shifted hard to AfD after Germany Inc left for Poland. Therefore, when push comes to shove, it becomes politically untenable.
It's not the first time in recent history frontier technology has been developed and commercialized, before any of this "capital" you are talking about really existed. That's the easy part (print money). The hard part is, taking leadership to convince the citizens of a place to be... what? Do you know?