By having backroom discussions with governments around the world and discussing how to regulate their competitors out of existence? [0] None of them have the money or influence to lobby for such changes like OpenAI does (alongside with Microsoft)
The path way to an OpenAI monopoly is quite clear, especially with the controlling stake from Microsoft. So I won't be surprised to see OpenAI continuously attempt and revive their regulatory capture using licences [1] against actual 'open' AI companies who release their papers, code, models, etc.