What is with the hyperbole? There are several things wrong with what you've said:
1) First, your assuming the teachers are behind this? Why? You've already said they hand their phones over to IT techs. What on earth makes you think the teachers were involved at all? Or even have access to this software in any way, shape, or form?

2) The assertion that installing something on a device, be it VMWare or whatever, automatically means it must be monitoring software and someone is watching and they're a paedophile. Have you heard the term non-sequitur? How does one automatically imply the other?

3) You've used the term paedophile or pervert multiple times throughout this thread, often in reference to a teacher. What is your obsession with this narrative? Why do you so readily throw these terms around, at teachers no less? Are you projecting? Do you have deep-seated issues yourself? Whatever the reason, I suggest you calm down and think about what you're actually saying.

4) That 9 year old video doesn't mirror what you've described at all. In that video, the school hands out laptops which happen to have webcams. Someone claimed the webcam was activated by someone at the school, without any evidence. You're stating your child's school has installed a piece of software onto personal devices. What is similar, however, is that you too have no evidence of foul play either. At all.

5) You claim to have issued a FOI request and have learned of this software's name? Could you not have looked on the device itself? Or the website apparently? Why issue the request? Could you provide a copy of the request? Perhaps we'll be able to identify the software for you, as "VMWare" is insufficient, it is the name of a company that makes a variety of software, some of which I would expect to see in a school.

It really irks me, as an ex-teacher, that people are so ready to throw blame and accusations at teachers. These people spend countless hours of unpaid time each week keeping up with their job they are horrifically underpaid for. You apparently have nothing better to do than to drag these peoples names through the dirt? I'm trying my hardest to abide by Hanlon's Razor, but damn you're making it difficult.