Horobi no Kuni no Seifukusha - Maou wa Sekai wo Seifuku suru you desu

This series started out with an interesting premise… at first. But by chapter ten, this premise is overshadowed by pointless drama, sloppy (at best) handling of cultural and knowledge differences,

out-of-the-blue status elevation,

and hints at a possible harem end being slid in there for no particular reason (disturbing to anyone who knows about the social, cultural, and psychological maleffects of polygamy nearly always has, let alone any moral objections).

Then comes chapter nineteen.

In chapter nineteen, the world is shown to be an alternate version of our own. The kingdom's enemies are essentially humans (who purportedly cannot have offspring with the people of the kingdom), and most of whom follow a religion whose church leaders advocate killing the long-eared people of the kingdom, despite nothing of the kind showing up in their scriptures. Said church goes by the name "Catholica." And the general enemy?— they're specifically stated to be Christian.

Yes, it is that blatant.

Most series I've read which show a christophobic (anti-Christian) or specifically catholophobic (anti-Catholic) perspective show clear and deliberate differences from the real-life religion, even if only to avoid possible law suits (you need plausible deniability). Here?— while the series does technically have such a veneer, it's remarkably transparent. Thanks to my background and where I grew up, I'm admittedly sensitive to such bigotry, but I can usually spend some time bemoaning it (sometimes a fair bit of time, actually) and read on. But here it's honestly impossible: it was laid on far, far too thick.

Contains spoilers for everything up and including Chapter 10:

The author didn't give much actual thought on how a person with medieval / early renaissance common knowledge would react to the things MC blurting out a theory about viruses and immune systems.

Most medieval medical beliefs were based on classical sources or on folk observation. With observation, they had a chance to correctly associate things like clean water -> less disease, or wrongly attribute things like blood letting as a good treatment to most ailments.

So if one could not "observe it" to even misattribute it, why would they believe it?

Author had the right idea with showing the illness on the cow and that thr kids exposed to the milk were fine, but he should have just went to that first. Having the MC go on spiel, expecting his dad to believe him without trying to simplify it in a more persuasive and concise way is just stupid.

Don't get me started on MC throwing a mathematical proof at his cousin in the very early chapters.

I get authors "write what they know" or googled, but they should dive deeper and think about the context.

If progress is a ladder, you can't rip out a rung from higher up and toss it down to someone expecting it will help them. But Author thinks it's that easy.

Also another middle age man in a child's body goes to school arc. How thrilling and exciting, surely he will be more mature and know how to handle conflicts like an adult 💀 right? 💀💀💀