Just going to address a historical inaccuracy here.
Spain conquered the Inca because their translator was able to use their appearance to foment a slave rebellion from the many many tribes and lower castes that were tired of being sacrificed to the Sun.
60 folks don't win revolutions against empires, I don't care how many horses and flintlock they have against cotton armor and obsidian blades when the folks that have obsidian blades are literally in the millions of citizens.
he have no issues because he was born and raised by muggles, wizardry families, not everyone have that beneffit
this topic also does not point out that in this case, orcs had both technology, superior war tactics and magicBut yeah, we're going off track, point stands that magic vs. technology isn't so easy to determine even in simpler settings.