They could try innovating and actually supporting an economy of entrepreneurship so individuals are incentivized to build better tools in their home country instead of coming here. Too bad VC _almost_ exclusively exists in the US. What Europe calls VC is a joke.
The world would be much better without much of what American venture capital has created over the past twenty years. Ad tech mass surveillance, Uber eating labour protections, "Unicorn" worshpping monopolization of basic utilities.