Thank you for this. I know you're joking but it's a very good point, this is all part of the systematic devaluing and deprofessionalising of teaching that is in vogue in this country. Starting about a decade ago.
They abolished the General Teaching Council about ten years ago and that was the beginning, in my view.
Then they turned lots of schools into academies that were a lot more autonomous than schools previously were, particularly with regard to hiring untrained teachers.
They brought in the HLTA, a TA that could teach a whole primary class with way less training or qualification than a teacher.
Many academies commissioned powerpoint-based schemes of work for a "consistent" cookie-cutter teaching regime, removing the need for extensive subject knowledge, making hiring in shortage subjects easier (I know one of the guys who wrote some of these for Harris in my subject, great guy, but still doesn't make it a great model).
Also heavy bias in both political sides of the press: every article about teaching or teachers portrays us in a negative light. Once you notice it you can't miss it, in every paper.