Nationalism is weak, you place your value and pride into something created by humans, something that has no value something that cannot benefit you in any way except to hate/love just because you were born in a certain place. That place you were born in you did not choose. You did not choose Brazil just like someone from America didn’t choose America. You didn’t not choose poverty or wealth just like you did not choose a war torn land over a prosperous land. It’s prideful to associate yourself with that, weak and makes you hard hearted. It’s weak minded and obtuse to assume something about someone based off of their appearance. Yes, some cultures are inherently better than others, if they benefit, instead of being delusional and continuing something based off of pride and for the sake of continuing something. It’s like nationalism is all you have. (Culture that is good :food, clothing, anything that doesn’t divide us humans based off of certain customs.)
Race is a social construct, yes, it only divides and creates animosity, we have different face shapes, features, that are all used to differentiate and identify, not to place more or less value, except to create communities and segregate us. But choosing to desegregate is also not inherently bad, except that you may feel like an outsider, so having your own people is good, you feel apart of something, but the moment you hate and discriminate based only of color, and ethnicity, is the moment you have become ignorant prideful, and arrogant. You should discriminate , Yes!, but only based off of morals, good character, and trustworthiness, based off of religious piety (how much he fears God, this does not apply if you are atheist and polytheist, but you will see a difference between the one who is pious and not.)
Do not place value on something that can give you nothing in return, nationalism is evil, ignorant and prideful, if you use nationalism to base your morals, your whole opinion, your happiness and contentment, it’s like you worship it. Don’t be weak.