More noise categories should be illegal or fined in dense areas, not less

Agree, but data centers are no inside dense areas though.

They're being built in the US next to people's houses with gas turbines

https://xcancel.com/BrianEntin/status/2067930868191035474?s=...

To me that only makes clear that gas turbines are the noise issues, no data centers. Surely there exists data centers that work off the main power grid and don't have a natural gas turbine as their own power source.