Ferdinand and Isabella were very pious and certainly did a lot of good in many ways, but their stoking the fires of the Inquisition and the expulsion of the Jews are certainly not models of respect for human rights. I suppose you don't believe in human rights. I'm a bit more sympathetic with the expulsion of the Moslems, as the context was after the War of Grenada, and such persons simply would not have been assimilable or loyal to a Christian state at that time.
Why are you buying into Protestant and secular myths about the Spanish Inquisition? Most historians no longer do.
A New Look at the Spanish Inquisition
As a person of partially Jewish descent myself I am not entirely comfortable with the expulsion of the Jews either. However we have to look at this in the context of the times, when as you say the Catholic monarchs had just fought a war to reclaim Spain from the Muslims, and at least some Jews had been in league with the Muslims. People in 1492 did not regard "anti-Semitism" and "racism" with the horror that we do today; we should not judge them by 21st-century standards. I don't think any of the supporters of the canonization of Queen Isabella would advocate expelling Jews from Spain today.
But apparently the wholesale slaughter of native Americans is quite acceptable to you. Or how about the 1.5 million abortions that women commit every year. Or that GREAT icon of American Liberalism FDR who put American citizens of Japanese descent into concentration camps by executive order? Yeah, your American experiment is SOOoooo superior to every other political formation on the planet.