The law’s defintion of harm is extremely broad. Charlie Jane Anders has a good discussion of this in The Internet Is About to Get a Lot Worse:

“This clause is so vaguely defined that attorneys general can absolutely claim that queer content violates it — and they don’t even need to win these lawsuits in order to prevail. They might not even need to file a lawsuit, in fact. The mere threat of an expensive, grueling legal battle will be enough to make almost every Internet platform begin to scrub anything related to queer people.”