I suggest you take the time to read independent analysis on the benefits of corporate subsidies in America.
I know I've read of many cases where they cost cities and communities far more than the economic activity they promise to generate (eg Amazon warehouses and sportsball stadiums).
Subsidies could make strategic sense in the case of AI, but it's terrible economics to encourage businesses that take more from communities than they give back, especially those that don't employ many people.
Data centers are known to create few local jobs while requiring upgrades to the power grid or water infrastructure.
Wouldn't that make it important to subsidize them at the national level, precisely for that reason? Otherwise it seems likely to be a NIMBY problem.
But now I'm talking about data centers, the main thing we lack here is AI research labs, is it not? I think those should create many jobs.