The EU has no viable software industry because there's no real single market to fundraise from and sell into (no single capital market, no single language market, no single regulatory market, etc).
The lack of domestic EU software/hardware products sits entirely downstream of that issue. The open source community will not magically solve this problem for them.
What if we stopped wasting time on anything that is not solving the core issue. The symptoms will take care of themselves after you solve the disease.