The thing is, as a teacher you can post that you think it's not a great idea to have 30+ people squished into a small, badly ventilated room because pandemic/heatwave...
...& you might well be posting that because you know exactly how grim it is, wouldn't subject your own dc to it if it were in any way avoidable...
...& you can be perfectly willing to teach online, or offer a hybrid where students can come in if their parents really need them to whilst providing online resources for others to learn from home, or add in subsequent twilight/holiday catch up sessions or ALL of the above...
& still you'll get a certain number of very vocal posters interpreting this as 'oh they just want to skive off - stay home with their bum in the paddling pool, a chilled glass of prosecco in one hand & phone in the other to moan on mumsnet. Bunch of lazy fuckers!'
I do get that it's an emotive issue for parents. Any sniff of a school closure & we are all (teaching parents included, if different schools do different things) a bit buggered for going to work.
But it does get a tad galling when, as a classroom teacher, you a) have fuck all say in whatever is decided & b) will be the muggins re-jigging lesson content & putting in extra hours to sort the upheaval out & minimise the educational effect on dc.
Ultimately, the thing that always surprises me is that the teacher-haters don't seem to have worked out that, in the midst of a retention crisis, slagging off teachers endlessly just means that they'll be left with the thick skinned, battle hardened ones who really could not give a scooby what parents think of them, & are happy to indifferently shrug off all complaints, including the valid ones. It does always seem a bit short-sighted!