The Inquisition was mostly about mopping up the last few practicing Jews and Muslims in the Iberian peninsula, terrorizing them into conversion and conformity.
Millions of people (on all sides) were killed in the Reconquista, over a few centuries, with many others enslaved, imprisoned, driven out of the peninsula, or forcibly converted. Those who converted to Catholicism were rewarded with centuries of further discrimination and persecution. (Disclaimer: I am not expert enough to know detailed figures here; feel free to search for expert sources if you want something precise.)
Scattered lightning strikes are not meaningfully comparable to large-scale genocidal war.
The Reconquista was a large scale genocidal war with millions dead?
Try to find a single reliable source supporting this claim. You might be surprised to find that it doesn't exist, and that it's also an example of citogenesis. [1] This is another perfect example of what I'm talking about. After Muslim armies invaded the Iberian Peninsula they created a system of government with a tiny minority of Arabs at the top with everybody else treated as distant second class citizens. They started trying to force people to convert and imposed taxes and other penalties on those who did not.
The predictable rebellions against this were the start of the Reconquista. It spanned many hundreds of years but was almost all extremely small scale. And they weren't driving anybody out in large numbers. The Arab and Berber tribes never engaged in mass migration or anything like that. Iberia remained overwhelmingly native Iberian with a tiny Arab elite. The same Spaniards and Portuguese you know of today are the ones that were there under Islamic rule as well.
[1] - https://xkcd.com/978/