[23B1]

Your comment presupposes that bigger = better.

This may or may not be true, but size is not necessarily a predictor of victory, especially in warfare.

History is rife with smaller belligerents defeating larger ones through innovation/force multiplication/asymmetrical warfare.

I think it's fair to say that an oligopoly stifles innovation; you can see it in how expensive and slow companies like Lockheed, Boeing, or BAE are when it comes to providing matériel needed by actual warfighters.

I don't think this is an either-or scenario – you need both – but saying that we can only be globally competitive on the backs of megacorporations is incorrect.