The answer to your question is yes. I can name half a dozen off the top of my head, from tiny to massive. But that's beside the point.
The argument you're making here is disingenuous. You're making an argument from ignorance: "I don't know, therefore aliens." If you can't name a European startup, all that tells you is that you don't know any European startups (or that you know them, but don't know that they are European); so before concluding that they don't exist, you should invest some time into research.
Also, your point is self-contradictory. You don't know any European startups, but you do know European startups that moved to the US, so you both don't and do know European startups.
You asked why you're getting downvoted. You're getting downvoted because you're making extreme statements that go against what we all see with our own eyes, and you're not providing any evidence.
The argument you're making here is disingenuous. You're making an argument from ignorance: "I don't know, therefore aliens." If you can't name a European startup, all that tells you is that you don't know any European startups (or that you know them, but don't know that they are European); so before concluding that they don't exist, you should invest some time into research.
Also, your point is self-contradictory. You don't know any European startups, but you do know European startups that moved to the US, so you both don't and do know European startups.
You asked why you're getting downvoted. You're getting downvoted because you're making extreme statements that go against what we all see with our own eyes, and you're not providing any evidence.