9. People seem to be fairly incapable of living between both worlds so you’re forced to abandon muggle friends and family or reject the wizarding world.
10. The danger that a wizard might go rogue and reveal magic to the Muggle’s military forces.
11. Slavery, forced segregation, and the subjugation and racism (specisim?) against sentient species is all taken as a matter of course.
Not the work of Dark Wizards: not the work of angry Muggles: but the work of normal, more-or-less good people.
It takes a Muggle born to even broach the fact that magically enslaving an entire species is kinda wrong.
12. Hagrid’s dad managing to impregnate Hagrid’s mom is a pretty horrible situation to think on.
It’s also apparently pretty easy to manipulate flying balls into chasing after a specific individual with the goal of shattering the bones in their body, so you could be minding your own business one day when BAM, giant ball to the spine.