Heres the catch 22 if they find a plantiff who doesn't have an ID. How would this person get into the courtroom? Aren't IDs checked for people entering courthouses?
Yes, photo ID is checked for persons entering federal courthouses, and this issue has been raised, IIRC in the oral argument at the 7th Circuit. The State of INdiana cited an opinion from the 2nd Circuit (again IIRC) sitting in New York denying a 6th amendment access-to-the-courts challenge to the courthouse ID requirement.