you mean everything (emphasis mine) you mention isn’t already happening in multiple states?
and maybe you’d get a helpful answer like as follows:
in most cases in US education, school serves multiple functions in addition to education, including taking care of kids during business hours (childcare) and feeding them one meal a day (in some cases; lunch). in the top level comment, the poster intended to express that, if all teachers/schools disappeared in a hypothetical thanos-snap scenario, all parents would be forced to cover the additional costs of watching their kids while they are away at work and of paying for that additional lunch.
such a scenario is entirely unrelated to current tragedies wherein children are going without lunches due to school board decisions, because, again, this is a hypothetical expressing the labor done by educators. the point is teachers are good things, and commenter makes that point by saying how without teachers things are worse. no one ever said things aren’t already bad, but that’s the assumption you made for some reason.