The Passage Below Makes a Moral IBE Argument

The passage below makes a moral IBE argument. Do the following:
-First, represent the argument in standard form using the General Form of IBE.
-Second, evaluate premise 2 of the Principle Justification Sub-argument by suggesting an opposing alternative principle that explains the paradigm cases.
The passage:
A number of public libraries across the country have recently hosted a controversial event: drag queen story hour. Although organizers and participants emphasize the ways they could help combat invidious bias against LGBT people, some library patrons find these events morally problematic. Some have gone so far as to suggest that drag queen story hour should be banned on the grounds that these events use taxpayer money to promote morally questionable behavior to children.
But even those of us who agree with the moral criticisms of drag queen story hour should not seek to have them banned. Virtually no one would advocate that hunting clubs, horror movie clubs, or evangelical Christian churches should be prohibited from using public library space to host their meetings. Many people are morally opposed to hunting, horror
movies, and evangelical churches, but nearly everyone believes these groups should be allowed to meet in the library.
Cases like these are what motivate many people to endorse a principle of viewpoint neutrality: it is unjust to limit an individual or group's access to public facilities on the basis of their worldview or values.
The principle of viewpoint neutrality entails that banning drag queen story hour would be unjust.