Importing 21st century sensibilities into a medieval society

[Miskatonic]

I haven't really read many stories with a pseudo-medieval setting in which everyone is tolerant and accepting. I've read plenty in which the social structure seems naive to me, but most books have hated assassins or feared wizards or whatever. The OP is complaining about something I have not much encountered.

That said, neither have I read many fantasies that portray the Middle Ages accurately. I don't really care. If I want that, I can read any number of historical novels that do a fine job with the era. Fantasy aims at a different sort of target. Complaining about a lack of historical accuracy in fantasy is, to me, rather like complaining about lack of character development in a Hollywood action movie.

I'm using the medieval feudal system for the main human kingdoms in my story.

I don't plan on spending a lot of time going into every little detail but given there are political conflicts going on I need to at least deal with some aspects of government, economics, etc.