So, they come to the school, and they present a gender spectrum, and tell kids that they *might* be trans, and offer support and someone to talk to if they feel they need to. Cool. That sounds like a good idea to me. Doesn't sound like they are giving anyone drugs or telling people they have to be trans, they are just allowing kids the option to talk.
OH NO!!!!
Is it any wonder now that society is more accepting and more aware of issues that the topic is being discussed more and people are more open to seeking the services?
In the article you have linked, the journalist doesn't actually show anything you have said. Just that all of "one american mother" shared a story where nothing really has occured, which isn't backed up so probably complete transphobic nonsense from an out of touch mother who hasn't got a relationship with her child.
I compare that to something like this -
https://mermaidsuk.org.uk/parents-voices.html