Perhaps you didn’t hear about “Real ID”. You need it to fly, and it involves data sharing/matching with the federal government. They did a back door federal ID system by simply integrating with all of the state ID systems.
The Federal integration is optional, it cannot be compelled, and many States have opted to not implement it. The only thing the Real ID does is compel uniform standards for how States implement ID, it does not compel them to share their databases.
