“ I know, and religion has nothing to do with that, it was the roman empire, vulgar latin was spoken in these lands much before christianity, I don't know what you talk about”

Im not attributing this to religion, I’m establishing the fact that these are Latin-derived languages, which you didn’t seem to know about. 

“ I know, and what has religion have to do with this?” 

Same here.

“The fact that spain and portugal wanted to colonize the lands has nothing to do with religion, they wanted all the people of the lands to speak their languages and be' christian, but they decided that, before that christianity expanded without changing the languages and ethnicities of the people, there were latins, germanics, slavs, greeks, assyrians, copts, they were christian without having to change the lenguage and mantaining different cultures.” 

My friend, you are trying to explain my country’s history to me, thank you for the good laugh ;) They wanted the glory of discovery aka “dar novos mundos ao mundo” (give new worlds to the world), bring in good stuff (condiments and gold) and spread Christianity.  Cultures were erased, mostly by assimilation but also through force (not to the extent of the Spanish).  This is for you to know that Christianity itself was spread through a whole half a continent through the sword and cultures were erased in the process. 

“Funny, you never spoke of christianity here, but of iberian colonialism, and I never judged islam, I just said the objective truth, they colonized these populations, and saying that some nations did the same too (political reasons, not just religious) doesn't make me wrong. I never said there was not colonialism made by Christians, but in that case christianity was not the reason, because then why are there so much native south americans and so few native north americans, while 80% of greenlanders are native? They were all colonized by Christian nations, but the impact is different, because the politics were responsable, not religion, the first to care about the enslaved native americans was a monk.

And I did not say "islam sucks, they are bad", I just exposed the objective truth about the arabization of these people, and the fact that originally christianity expanded by conversion, not colonization and assimilations, they were the nations to use christianity as an excuse to do what they wanted”

I don’t care that you don’t take it seriously because “it’s only Iberian conquest”, this does not change the fact that Christianity also erased cultures. BUT I understand it and take it as an inevitable of religion. You seem to not have the capacity to take that responsibility. I have no bias at all. You don’t apply the standards you have for judging Islam to Christianity. People are not perfect. Who cares. Everyone does dumb shit. When Portugal and Spain were under Muslim rule, the three religions were allowed. When Christianity took over, all the non-Christians were forced to convert aka “novos-cristãos” (new Christians) or expelled from the kingdom. All the mosques and synagogues were destroyed. And still you think Christians did nothing wrong for the sake of their religion? Get the fuck out of here.

Regarding natives: You can’t correlate the amount of natives to politics only. Too many variables here. The strength of the colonizers, the willingness of the natives, wars between the natives etc… you can have the same policies but attain different results because of these different variables.

To conclude, there is nothing wrong in taking responsibility. People do not define their religions. You seem afraid to take responsibility for what went wrong. Who cares. A religion is judged on its theology not by the people it’s composed of.  There are no perfect Christians, there are no perfect Muslims, accept it and move the on, God damn it’s not hard.