No, mostly, it's a money and state education system problem.
The kids who assault others, the kids with needs so severe they can't even spell their own name in Y10, the very bright ones and the ones who have no interest in education and whose parents couldn't care less are all in the same room together.
There is no money to exclude, no money to be able to afford an Inadequate rating (to attract the best staff, or provide an education when pupil numbers drop), no money for modern equipment to make teaching remotely relevant. Hell, we currently have no budget for glue sticks or paper, let alone enough servers to deal with new AI-driven systems, devices which may get a child to pay attention to us more than their phones, no money to take kids out of the local area. What we DO have money for is a cheap messaging system allowing parents 24/7 access to us, to increase the "customer experience" (i.e. to tick the box that we allow parents to communicate with staff whenever they want).
Parents in private schools care more about education, hence why they pay out insane amounts of money for the privilege. While you have demanding parents, and parents who think money should buy their child a qualification, they are far less likely to abuse you for fear of exclusion, far less likely to ghost you when you try to discuss issues and far more likely to involve tutors if a child falls behind.
OP, it's shit right now.
Kids don't care, parents care even less.
Money is so tight further up the chain that kids get unconditional college offers and therefore don't give two shits about their GCSEs beyond Maths and English.
There are no teachers and supply is extremely rare for money reasons and because kids get away with far more than 20 years ago, so we end up with at least weekly cover on top of an insane workload. I get up at 3am to work, because there is no time in my actual day to do anything, but lessons are expected to be planned to perfection, regardless.
My practical subject increasingly has no money for pupil equipment, and what little we have often gets wilfully broken.
And worst of all, if a child truants or misbehaves, it is seen as my fault for not making my lessons engaging or refusing to keep Johnny in the room after he repeatedly told me to go fuck myself. I cause trouble for having standards and, as a middle leader, for holding my senior colleagues to account.