All historians use primary sources. The understanding of any historical subject has increased greatly since the 1840s. You should look into that. Maybe you should consider reading more than that one ancient book before you decide that you are an expert.
Naturally, Cortez became very rich in Mexico. He attributed his success to God and to his native mistress and translator, La Malinche (aka La Chingada, which means ‘what is f___ed’). She was one of twenty slavegirls distributed among the Spanish captains. Bernal Diaz del Castillo (the most important Spanish primary source, whom I have actually read) calls her D. Marina. He says that they couldn’t have done it without her. I think she did a lot to engineer the downfall of the Aztecs. She is a much more interesting figure than Cortez.
Lots of Christian fanatics have committed “mass murder in the name of a god,” including the Spanish conquistadors. Do you think that they are demonic? Who is sugar coating?
Popular morality is always changing. For instance, slavery was considered to be moral until people realized that it was immoral. Does that mean that everyone who owned slaves when slavery was commonplace was an evil person? In my opinion, no.
the La Malinche name came from the Aztecs, not the Spaniards. Yes, her name was Marina. You are fairly interested in degrading Cortez...” what is ####ed”...please, that’s not what he called Marina. He wasn’t perfect but cared enough about people to overturn an evil civilization. And morality is not determined by popularity...our conscience gives it to us. No, not all slave holders were evil people....just caught up in an evil practise.
Btw, Prescott is a good a source as any on the history of the conquest as he spent years in writing it from many original manuscripts of that time. Have you read it? I don’t claim to be an expert but I can understand much from Prescott’s book. He was actually even handed and did write about conflicting motives of some of the Spaniards which Cortes had to deal with. Cortes already had considerable wealth before the journey and used it to supply his small army with. If you had put your life on the line the way he did of course you would expect some compensation after victory and success in rebuilding a much better Mexico. You don’t sound very honest in your perception of events for whatever reason. Maybe just mislead by politically correct teachings?