I definitely think the fact that so many teachers are unhappy in the profession is a part of this reaction. I was driven to a full on mental breakdown, anxiety, depression, insomnia, suicidal ideation etc, by teaching. I would have grabbed at this opportunity to stay away like a drowning man for a rope. That's not individual's fault, that's the fault of successive government who have run the profession into the ground.
If the governing is serious about getting schools back up & running they need to treat it like they did the NHS. Nightingale level plans for schools.
Step 1: huge recruiting drive for qualified teachers who aren't working - with the woeful retention rate there's plenty of us. Government run central supply agency of additional staff who are paid to the national pay scale, and can be brought in by schools to provide enough staffing to split classes and cover for teachers who have to shield.
Step 2: bulk purchase & distribution of temporary, demountable classrooms. Get these up on school fields, car parks, playgrounds to provide the additional physical space needed to enable some level (prob more like 1m) of social distancing. Also buy the furniture needed for these; very few schools have single person desks. For schools without space to put up temporary classrooms, requisition local buildings and convert, and operate a split site.
Step 3: More bulk purchase and installation - hand sanitizer pumps on every classroom door, and at entry to the school grounds. Temperature checkers to be provided for every school.
Step 4: Order schools to cancel all cpd crap & directed time so that teachers can leave site as soon as the teaching day is over. No squeezing the whole staff into the hall or staffroom for meetings. Info is sent via email, meetings are done by zoom or teams. No parents evening - remote via zoom etc or written reports instead.
Step 5: Get rid of attendance policies that encourage parents to send ill children to school. Get rid of attendance policies that encourage staff to come in when ill.
Step 6: Allow schools to suspend / expel students who deliberately attempt to harm staff (i.e spitting at or coughing on staff). At the moment it's incredibly hard to actually get rid of kids. I taught long enough to know that it's not particularly unusual for students to assault staff and for the staff to be expected to carry on with them in their class as though nothing has happened. If the police can arrest you for spitting at them & claiming to have Covid, teachers should be able to kick someone out for doing the same thing.
Where I do have a lot of sympathy for teachers is it seems to be the government are setting the timetable but doing nothing to actually help, just washing their hands of the problem.