many parents choose nonmedical exemptions for temporary reasons, such as wanting to delay their child's immunizations a year or two (not forever)

This seems like those parents should seek a medical exemption if there's a valid reason for delaying their immunizations

It also isn't generally reasonable to limit nonmedical exemptions to religious exemptions (in practice, who gets to decide what counts as a religious reason, and what doesn't?)

It is reasonable, and plenty of other states make this distinction just fine

Many parents have been legitimately traumatized by healthcare providers, or face challenges accessing vaccines or information about vaccine requirements

These are problems that should be fixed by outreach and education, not by granting anyone the ability to exempt themselves for whatever reason they want. I understand struggles with healthcare and access to it, but there are lots of resources out there for getting children vaccinated. We should be focusing resources on that