1. Europe's most ambitious entrepreneurs leave for silicon valley because audacious ambition is heavily discouraged culturally. Europe has many talented engineers and many founders who aim for "reasonable" success, but that's really not sufficient.
2. Big investments only work when success means outrageous profitability. That's not how it works in Europe. Businesses are supposed to make at most a "fair" amount of money. Greed, for lack of a better word, is not good. In the US businesses invest 100s of billions in AI hoping to profit trillions. No European business will be allowed to make that kind of money.
3. EU funding is laundered through established players who understand how the game is played. Giving handouts to incumbents harms competitiveness in the long run.