There's no profit in technology so there's no interest in starting a business leading to low demand for workers.
Stimulate the sector directly through investment and indirectly by enabling competition and the demand for jobs will increase - following with it salaries.
Cash injection isn't enough though, if you don't break down monopolistic barriers, businesses will fail regardless
Isn't the salary difference more about differences between Silicon Valley (or Big tech in US) and Europe?
One competitive advantage of the US is probably that often equity is involved (although this can be a disadvantage too if it replaces money and doesn't come on top).
Also don't forget that in Europe you often have a better safety net (especially if you loose a job) and lower rent.
True that. Also in many countries in Europe, IT jobs are not "special" anymore and salaries are similar to the median.