I'll add that Jon Harris Maurer did a terrible job defending your position. Did you watch those videos? The questioners completely dismantled his argument. Despite that, you'll note that he really didn't make a single case for discrimination (he does make a weak argument for prejudice...which is not discrimination), yet you are.
The only valid point, which I've acknowledged, is the vagueness of the bill. I would be fine if your stance, like that of Harris Maurer was that clarification is needed, but that's not the argument you are making.
Per your link...
"Classroom instruction by school personnel or
third parties on sexual orientation or gender
identity may not occur in kindergarten through
grade 3 or in a manner that is not age-appropriate
or developmentally appropriate for students
in accordance with state standards."
Who is that discriminating against and how?