First of all, even if what Moore said was true, events in Spain 300, 400, 500 years ago aren’t terribly relevant in a conflict that is happening in the here and now,.
But ultimately Moore is ignorant and peddles myth. The Spanish Inquisition is overblown. Scholars who have looked seriously at the subject have pretty much concluded that executions by the Spanish Inquisition have been vastly overstated and the Inquisition was no crueler than contemporary courts in England, France etc.
https://www.ancient-origins.net/news-history-important-events/spanish-inquisition-truth-behind-black-legend-part-ii-003919
In fact it’s been documented that at various points accused heretics/Muslims/Jews in Spain considered the Inquisition to be more lenient than civil courts, and given the choice, often begged to have their trials at the Inquisition where they perceived their chances of an acquittal and/or light sentence as much better
The Inquisition had more or less reliable due process.
A true innovation at the time. It had rules, of evidence, of counsel, of appeal, etc.
Theres a reason there were no catastrophic massacres of accused witches or heretics in Spain.
https://en.wikipedia.org/wiki/Witch_trials_in_the_Holy_Roman_Empire#Germany
contrast with Spain -