[tigen]

Sure but that was backed off. The law does not, in fact, apply to all books with LGBT content regardless of what they contain. There was a March 2024 legal settlement clarifying many cases that are explicitly not prohibited.

Also, do you think these laws have been important regarding the "decline by 9" of 9-year olds reading for enjoyment?

One possible issue on the contrary side is promotion of kids' books involving racial diversity themes. Often such moralizing books are not very interesting for pure entertainment value. They are there to meet a market trend, some may be better than others but in general have not stood the test of time.