You will understand that only after you spend time actually hiring people. Telling the boss well I can't do this locally in 3 months, I need 6 plus a budget to relocate people from other EU locations will just get you laughed out of the room for the simple reason someone else in the org has already done it through outsourcing and importing people.
> Companies stay in the west because of the ecosystem comprised of stable government, financing and skilled workforce
This is probably 10-15 year old rhetoric that isnt true anymore. There are now dozens of hubs worldwide that make it simple to hire large number of people fast. Just make a trip and look at the scale at which they function.
The EU is doing the right thing by trying to pull more people in.