No, I do not know what you mean.
You probably live in an area in which you have a choice of doctors and hospitals. The rest of us are not so lucky. So we often take pot luck and hope for the best and do what is in the best interest of our child in each and every particular ER situation.
Remember also, that accidents occur to children while on holiday in another community, so a parent does not always know the mindset of the particular ER team when they take their child in.
For most medically trained personnel, an unvaccinated child = child neglect and abuse. They see it as their mission to berate and punish the parent and overtreat the child while the child is in the control of their ER, and possibly look for other forms of neglect and abuse to call to the attention of DSS or CPS to further investigate the parents and home situation.
And remember, if you are taking in a child less than two months old and/or the child is born at home, it is SOP to give this child a spinal tap in many ERs. Medical personnel consider the outside to be dirty and they treat babies born outside of the hospital as dirty.
I don't know where you get your info that MOST medical professionals believe and unvaxinated kid = neglect or abuse though. My kids have had two regular pediatricians, two trips to urgent care, one trip to an ER and no one once ever batted an eye about our vax status. My current ped. needs me to sign a refusal form, but he practically apologizes for having to ask me since his medical group requires one. So anecdotal on my behalf, yes. But we are 5 for 5 in not knowing a doctors stance on vaxing in advance and never had an issue with them or their support staff.
My statement wasn't meant to say a parent already knows how a doctor feels, but that chances are if a physician is that bad to begin with, your kids vax status isn't going to make them a better doctor. No matter what as parents I'm sure we all advocate for our children. I've fired doctors that did not in my opinion have my best interests at heart and if I was unlucky enough to have something similar happen with my kids I'd not hesitate in finding some other care.