EU countries also have very high tax rates, which feels like the community is the primary beneficiary of your business, not you the entrepreneur. This alone severely reduces the financial incentive of starting a business. There's also some weird cultural stigma in the EU's more socialist countries (like France), where the system is way more comfortable for you as an employee rather than a risk taker. Let's call a spade a spade.
The way you say it, it sounds like the EU shouldn’t have any companies at all, but that is not true. In fact, the EU is very good at boring tech, which is the reason why the US is imposing high tariffs.