This policy is incredibly harmful. There is no evidence that calling students by their preferred names and pronouns hurts them or brainwashes them. However, there are mountains of evidence that misgendering and misnaming them directly leads to self-harm and suicide, and calling them by their preferred name and pronouns decreases that risk. (https://www.jahonline.org/article/S1054-139X(18)30085-5/fulltext#intraref0010a, https://psycnet.apa.org/record/2012-21760-001, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5178031/#ref11)
Schools shouldn't have to tell parents things that will make life worse for the children. This will lead to abuse, harm, and attempts at conversion therapy. Schools exist to help children, not hurt them.
Also, this policy will hurt non-trans students too. After all, we have to call kids by their birth names. Sorry, Max, everyone has to call you Maximillian now. And gendered dress codes? No more wearing pants Alexa! And James, take that skirt off right now! That piece of cloth around your legs is brainwashing you!!!!
I'm lucky to be a child born to supportive parents. But I wonder sometimes, what if I'd been born to parents who didn't support me? Parents who only loved me when I fit their mold of how a child should act, and who a child should be. I can't imagine how terrified I'd be every minute. Knowing that if I acted like myself, if I tried to be happy, I would lose my family, and I would be endangered. School should be a place children feel safe at. If this policy goes into effect, that safe space will be gone.
It costs nothing to be kind. That's something they teach us on the first day of kindergarten. It costs nothing to respect a child's identity or wishes. It costs nothing to try to ensure children don't kill themselves. It costs nothing to love. I'm saddened that this lesson seems to have been forgotten by so many. I get that trans people are confusing, and confusing things can be scary. But fear is not an excuse to hurt people. And this bill does hurt people.