What is the feeling of nationality and is it contrary to the idea of universal brotherhood? How can the feeling of nationality be expanded to include universal brotherhood?
A sense of universal brotherhood comes first and foremost.
Now, though you may not be a stakeholder in the entire universe, but you are definitely a voter in your own country. And when you are a voter in your own country, you have some responsibility towards the country. You can express your needs and opinions through the local press and you can take some action.
Globally, you can spread human awareness, You can do good and also wish good for everybody out of a spirit of friendliness and compassion.