The Safe Schools issue is complex as it has been targeted mainly for gay/lesbian and Marxist indoctrination by the Christian right. Trans ideology never really got raised during the furore (last year?).
Aurhor of this article is one of Murdoch's poisonous snakes. An opinion writer who does the bidding of the Liberal Party. While there is some useful info there, conflating trans social contagion with Safe Schools is ridiculous.