Tech companies are getting insanely large valuations (I work in tech, and I think they're absurd). Europe doesn't have many large public tech companies, therefore Europe looks bad in terms of the "industries of the future"
Plus a bunch of angry USians really irritated by the anti-trust stuff the EU has been doing (DMA etc).
It's not even all tech either. Europe has some big players in silicon or biotech for example. It does however lack giants that introduced major disruptions in the way things are done, like cloud services, social networks, gig economy etc.
Plus a bunch of angry USians really irritated by the anti-trust stuff the EU has been doing (DMA etc).