> There's an extreme selection bias there.

Maybe. Unfortunately, what digitaltrees wrote here is ambiguous. It could also be read as this:

Our caregivers serve low income families. Those caregivers, who are our employees, earn $12-18/hr which is above minimum wage. Our employees absolutely struggle. Our employees are the ones using food banks and housing assistance because many are one car repair away from homelessness.

digitaltrees: which interpretation is correct?

I think the latter interpretation is correct. As in digitaltrees runs a business that does not pay its employees a living wage, who then have to rely on food banks and housing assistance.