I agree that your assessment is likely correct. I was merely seeking clarification as to why this was a 'state's rights' issue in the way the OP implied. The requirements to fly have never been left to each state as far as i know, so why would this issue be any different. Yes, the feds are leveraging States to comply, (which i do disagree with) but they've done it for lots of other issues in the past (such as the drinking age and federal highway funds). The ruling wouldn't invalidate Oklahoma's ID, but would say that it doesn't meet the criteria to enter federally controlled areas.
If we're going to get worked up about something, lets at least get worked up about the correct thing.
Keep in mind that these areas (the Sterile Area of an airport) are federally regulated, not federally controlled. It's a complex issue with TSA being the arbiter of granting or denying access in most airports, but the distinction is important. A U.S. courthouse would be a federally controlled area, as well as an FAA ATC tower.
The other fights have been over funding, not access or travel. This is a fight over the right to travel peaceably for U.S. citizens and the right of states to have control over their ID system.
If this is like any other fed initiative, I'd imagine they have attached significant strings to the funding of compliance with RealID. Access to the database probably being one of them. THAT, would undermine state sovereignty.
I know my agency was willing to pay for a security system for the regulated entity where I work. The "carrot" required unrestricted access to said system. The offer was rebuffed, resoundingly.
What would you do?