Apparently the Houston Public Library system had a registered sex offender participate in their "Drag Queen Story Time" program because they forgot to do a background check. Well, almost, but I'm under the impression that one of the parole conditions for sex offenders is that they are prohibited from such interactions with children. So what we have here is not just that the libraries failed to perform a background check, but also failed to report a likely violation of parole to police.
And they want us to believe, having failed in these basic responsibilities, that they've done the homework to demonstrate that drag queens in close contact with kids poses no risk. Not buying it, to put it mildly.