What part of "strict neutrality" do you not understand?
You're not self-aware at all, are you? This is exactly what this young lady did, and exactly what rational people are objecting to.
SD
If they invite EVERYBODY in to proselytize, including atheists, agnostics, etc., then they are being quite neutral. It's the selective invitations that violate the neutrality principle.
But I quite agree with you that public schools simply shouldn't exist.