Why should they share all this data with the greedy american corporations that are stealing everyones data for their own profit? Much better to keep the legal agreement with the national institutions and possibly develop something actual useful to their own country.
You are contradicting yourself. If you're hoarding the data for yourself you're not going to develop something useful. Sharing the data means that it will be integrated into the big LLMs, which will be useful "for their own country".