I think you are severely underestimating the level of influence the US government already has. NIST is a US Agency. Much of research in the US is done at the behest of the government. My local university had to comply* with anti-DEI policy to continue receiving federal funds ( it's primary source of income).

Influencing the foundation of a, quite frankly bad, programming language is not really that impactful, especially considering that the foundation apparently only has 14 employees.

*In case you were wondering the only change they had to make was discontinuing LGBT work anniversaries. So you can probably see why I view this anti-anti-DEI fear mongering with some skepticism. The reality is that racial bias in an organization is very difficult to actually prove, regardless of whether it is pro or anti minority, so anti-DEI constraints simply prohibit explicit biasing.