Just as there are examples of male teachers taking advantage of pupils, there have also been a number of cases where female teachers have had inappropriate relationships with students.
All the cases known to me where female teachers had inappropriate relationships with students, there was no threat or violence involved, and the boys were past puberty. A bit of a difference, there.
With regard to male primary school teachers, I'm not saying we can't have them, but there must be very clear boundaries.
And there needs to be a woman in a position of authority in the school whom children know to have authority over, or at the very least the power to veto male teachers.
We can't completely prevent adults preying on teens who can be lured in with the promise of a romantic relationship, but we can make damn sure that no blackmailing can take place.
Not giving any man or all-male group the power to ruin a girl's or woman's future is the way to do that.
Changing society's views on the importance of keeping children safe is also desirable, but that's something that can happen only slowly.
For immediate improvement, removing or closely supervising the people who commit more than 90% of such crimes, namely, men, is the easiest way.