And that's all we're asking, guvner. Can we try not having "tech giants"? We've tried and there are all sort of issues that negatively affect society, privacy, innovation, ...
And the massive success in US is at least partially a side effect of being able to be harsh, move very fast (ie fire half of company when needed). We don't have such adaptability, some say for good reason, some disagree.
I don't think any smart politician doesn't see this clearly, but we lean way more left generally than even democrats in US, so at the end directions taken are roughly in same direction, but otherwise unique.
As long as there is overall freedom of movement and thought and cca fair competition we are all better off as such, I have US colleagues who love it here, and I know few folks who are happy across the pond.
All of the stock markets in the EU/Europe are really small compared to the US, and there's a steady stream of companies moving their listings there.
Fixing that (with the Capital Markets Union) would presumably help, even if everything else remains the same.
Washington is home to Microsoft and Amazon, so it's doing okay, too.