Big successful companies in USA aren’t big just because of better access to capital. It’s easier to create a monopoly there without major consequences for the business. Europe has no interest in having such businesses, as was demonstrated by DMA.
That's objectively false. EU would love to have its own monopolistic companies in the tech sector the same way it has in other sectors. It's only against them because it has none.
> as was demonstrated by DMA
Europe's DMA is orthogonal to its wishes of having monopolistic companies as all of those companies are American not European.