Some of the stuff in this article may be fine, and trying to raise money is certainly harder in Europe, but I thought one of the biggest drags on Europe's tech industry is poor pay for engineers and other tech talent?
In the U.S., going into a tech career can be one of the best ways to make a high salary quickly -- especially without needing an advanced degree. Without this incentive, you'll have a lot less people pursuing education and careers in these areas.
A software engineer makes like 50% more salary (let alone all of the other stuff) in the Bay Area as they do in London. London is a really expensive city that pays certain industries a ton of money.