You're misunderstanding. This is not a careless mistake; the guy was collecting tax funded pay and didn't even pony up a ss#. My inner contractor smells a much wider rat.
I can't tell if the guy was affiliated with DSH. The Houston Library was using the trademarked name, so I provisionally assume so. That could mean DSH has not been running checks or valid ID for years, and might still be running that way.
If you trouble yourself to actually read the posts you are replying to, I am not suggesting anything be shut down. I'm trying to wrap my head around what they are doing and why.
"It's really important that we have men dressed like women to read stories" falls a little flat. Having a variety of colorful characters, including some DQs? Sure. But pounding your fist down and screaming "NO! Only men dressed as women!" does not have that vibe.
What other gender-presented-restricted-themed story hours does the Houston Library run, for instance?