World Cup 2014 Rant - Latin Americans and Their Ignorance Towards Argentinians

Argentina, today lost against Germany and I thought about how unfair it is that a lot of latin americans chose to not support Argentina and when I say not support Argentina I mean support Germany and wish the worst to Argentina. 
Is it rivarly? ignorance?
I think it's a bit of both but mainly leaning towards ignorance but I wish it was just rivalry. I don't mean to sound like a hypocrite but I don't get why Latin Americans can't just be as a family with each other and support each other instead of getting into ignorant ideas about a whole country.
The reason a lot of Mexicans, Brazilians, and latinos in general basically have a negative generalization about Argentinians is because they never met any, a lot of latin americans get the idea through the internet that Argentinians treat everyone else in latin america like garbage and see themselves as the superior nationality. 
Where do they get this idea from? I personally can say that as a Spanish- speaker there is a stereotype that Argentinians are racist, think they are of only European decent, narcissist, and think they are superior. I don't know where this stereotype started but I will say that the fact that there is stereotypes built online through countries or people who have not met or taken the time to understand certain customs of our brothers and sisters are ignorant and more than anything obviously not looking to know about them. 
I have seen people saying "Why should I support Argentinians when they laughed at Mexico, Costa Rica, Brazil, Chile, etc.,?" First of all, get out of your computer go meet real people and not just read comments that someone would say in a moment of rivalry, don't build hate and generalizations from a small community of people whom already built the hate and generalizations the same way your are building them. Yes, there is rivalry but if you knew these Latin American countries you would probably love these countries and the Latin American people like you love your people and your country- we have many things in common our language, latin america, and our passionate cultures.
When there are Argentinians who do fit this concept they are mostly always online spamming or trying to put down others you know why? because that's how upset and confused they are fighting over their identity or how badly they want to be recognized as superior that is why they go around trying to convince people when they can't even convince themselves or recognize the reality.
In real life are there people who fit this generalization? Yes, not only in Argentina but in Colombia, Mexico, Chile, Uruguay, etc., etc,. I have seen my fair share of people from all Latin America claim superiority in the stupidest things and put down other Latin Americans. Honestly, it's stupid. I think it's due to the fact that we are a variety of races /ethnicities where the world is ruled by a lot of European countries in many ways I think this is were the superiority or the wanting to be better behavior or comments come from it's embarrassing.
Yes there are people who fit these stereotypes but don't build hate towards a whole country- even after personal experience I never once turned my back against the USA after seeing how true the ignorance towards football is here and neither did I hate Brazil ever or wish them the worst when they were being arrogant- There is much more ignorance to Latin America and I feel so ashamed when I see my Latin American people generalizing or being ignorant towards their own people if you think there is something wrong with a whole country go look at yourself first- your the problem not a whole country (and that goes to all the people around the world.)
Anyways this World Cup has been great except for my anger towards Robben and the Netherlands and no not speaking of a whole country but their team.