'Terrified'? YABU.
Glinner has nutpicked some egregious examples, but there is nothing to say that there were any negative impacts on any of the children as a result of these, or anything that couldn't be cleared up in a quick discussion with a parent.
I'm very trans suportive but personally do think it's not actually helpful to discuss gender identity with kids under about 8 because it can be easily misunderstood by young kids and cause some perplexity, and give the tiny % of children who may be trans that it could help is so vanishingly small, it's not worth doing to help them.
But if you keep an open channel with your child you can probably explain your point of view - remember, they are not teenagers, your viewpoint still shapes their world more than school. Hearing someone say 'Men can have children' is not going to do irreperable damage to your child, but if you have concerns, talk to them about it.
Schools are honestly not going to be relentlessly pushing some sexualised, hey everybody can be whatever gender they like hardline day in day out, honestly. Some stuff you disagree with, and may be right to disagree with, may feature in the occasional lesson, but as long as you actually talk to your child, in an age appropriate way, it's really not going to harm.
NB I think talking sexual pleasure to 14 year old girls, as in Glinner's example on Day 3 is actually a bloody good idea. It's not pervy. Teaching girls at an appropriate age, which 14 very much is, that sex should be pleasurable when you choose to do it keeps them much safer than letting the societal narrative carry on that sex is something to be endured if you're female. It's healthy and safer for girls to recognise and expect good sex than to not be told anything or told they just have to 'put up with it'.