Countries without trillion-dollar companies ... will be owned or coerced by those that do
The idea that the government will effectively bankroll a trillion-dollar company begs many questions, the most pressing of them being...
1. What's the idea that the rest of the world has missed (or implemented badly) so far, and what makes you think it's the big one? The idea comes first, and even if the idea is to copy somebody else's idea but do it better, it still comes first. You don't magic a trillion dollar business into existence just by flashing your cash like the guys at We Buy Any Car.
2. How much access, and control, will unelected government lackeys have? I'd expect certain of them to have far too much influence at far too many levels for almost anybody's comfort (except their own, presumably) - and for that reason alone, any idea, even one with legs, won't fly. People with principles won't join or won't stay. People without them tend, in my experience, to be more blinkered - a major disadvantage when trying to build this unicorn of a company.
In short, even if this is true, it's a totally garbage idea that simply wastes more money that we don't have. All to stroke one unelected government lackey's ego.