We find the same magic soil logic after but this time with religious groups. Of course bright huguenots were to be found in foreign lands but going as far to say that they were responsible for the economic success of said lands is utter ahistorical nonsense. It's not like the effect of huguenots' departure as a group was left unstudied either. In the harbours for example we find for example that the activity was left mostly unchanged, sometimes it even rose after Fontainebleau. Needless to say that proves there was no switch one way or the other. 