Meaning that an altruist has a wider sense of in-group, while a psychopath has a much narrower one.
I guess this however opens up the possibility that one can "learn" to be a psychopath by narrowing ones in-group.
Also, many people are not altruistic even to their in-group.
Maybe more multi-ethnic, but I'm not sure about multi-cultural. If anything, at least we globally share a baseline of culture because of the internet and I only see that increasing...hopefully.
As European, I can only hope the world will adapt a secular vegan European-like culture and not e.g. the war loving US culture with lying government officials (even worse than some European nations) or the Chinese culture (e.g. Social Credits and no freedom of speech) or the work culture of South Korea and Japan or a Muslim/Sharia culture or a culture of genital mutilation of boys and girls or a culture of throwing acid in the faces of people or a caste system like in India.
Just like being vegan. As long as I don't force you to eat meat and you let me enjoy a stake with cheese, all is good. But once we try to establish baseline (either all-vegan or mandatory-meat), all goes down the shitter...
There are important and often deadly conflicts (e.g. coercion, mutilation, poverty, war) related to cultural differences and (IMO bad) cultures themselves.
I am in favor of a prohibition of cheap animal products because of the economic, ethical, ecological and medical problems related to animal products.
I am in favor of a limitation or prohibition of certain cultures. E.g. the Islamic veil or family customs that lead to psychological and physical harm or forced marriages.
On top of that, even if we'd come up with a common baseline, I'm sure people would invent differences in no time. Give it some time and somebody in vegan culture may realise that animals are edible and damn tasty.
Prohibition of cheap, all-shortcuts-taken, foods is not vegan issue. Veggies, animal-related foods and meat should be responsibly made and focus on quality (as in nutrition and taste, not only nice looking) rather than price alone.
You'd have to redo Islamic culture from the ground up and forcefully reeducate several generations of people. And it's questionable wether it'd be a success. Soviets and Nazis did try to build the new perfect man. Neither approach was pretty. Let's not go down that path again. Yes, some people may seem backwards (as we do for them). But hey, live and let them live. As long as neither of us bother each other and live in their own countries ruled as each of us see fit.
http://www.un.org/en/universal-declaration-human-rights/
Unfortunately not even European countries respect the human rights with regard to poverty (economic, social and cultural rights) and freedom of expression (civil and political rights) and international law regarding warfare (e.g. Libya, Yugoslavia,...):
Also, world-government formation would be a blood shed not seen before. On top of that, all similar formations so far couldn't hold their shit together. USSR, British empire, Roman empire.. EU is struggling too. Even China has tumultuous history and they'd have issues the moment iron grip is loosened. USA is not exactly without internal rivalries either.
Why go through hassle of forming such entity if it will fail sooner or later?
I understand that as we become more multi-cultural, there is a decrease in the percieved kinship between city dwellers and thus less alturistic behavior.
Basically, in diverse cities people are more likely to be assholes to each other.
> Relatively homogeneous societies invest more in public goods, indicating a higher level of public altruism. For example, the degree of ethnic homogeneity correlates with the government's share of gross domestic product as well as the average wealth of citizens. Case studies of the United States, Africa and South-East Asia find that multi-ethnic societies are less charitable and less able to cooperate to develop public infrastructure. Moscow beggars receive more gifts from fellow ethnics than from other ethnies [sic]. A recent multi-city study of municipal spending on public goods in the United States found that ethnically or racially diverse cities spend a smaller portion of their budgets and less per capita on public services than do the more homogeneous cities.
Source: https://en.wikipedia.org/wiki/Multiculturalism