Because the policy that they be closed (where they are in fact closed) does not seem to be objective.

Schools are a net good for most people that attend them. Closing them means that not only do those kids lose the opportunity to learn and develop social skills, but also that their parents’ lives are disrupted to the point where they are likely to be completely unable to provide for their families.

This doesn’t mean that it’s never appropriate to close them; it means that they shouldn’t be closed without very good reason, and that they should be re-opened as soon as possible.

In short, I want schools open because closing them demonstrably hurts people.