This might be taken as hyperbolic, but the EU seems to have trouble building anything.
Network effects are real. It is hard to convince people to move over to your platform if the selling argument is 'not quite there yet, but we got you covered on the minilib front, plus it's less usable because of our weird interpretation of our own data protection laws'.
This is where I disagree as a software engineer who has seen EU products built and not adopted... I've also built products myself which were fully functioning and scalable but not widely adopted. Building is not the bottleneck.
It feels like there is a limit on distribution. Just getting people to try a product is incredibly hard. Very hard to reach them and ads feel like they're only served to bots.