“I honestly don't know, but if America continues to refuse to reduce its greenhouse gas emissions, I see a bleak future not only for American society, but for the world as a whole. This is a global problem that is not going away, and the United States is an obstacle to solving it.”
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That's a central part of philosophy, of ethics. What do I owe to strangers? What do I owe to my family? What is it to live a good life? Those are questions which we face as individuals.
Knowledge is generally considered a good thing so, presumably, knowing more about how the U.S. thinks and operates around the world is also good.
In the sense that you're not at the centre of power, like a president or prime minister of a major power, everyone is marginalised my position doesn't isn't unique in that respect. I think there are different sorts of relevance in different contexts.
We need to recognise that what really matters isn't buying more and more consumer goods, but family, friends, and knowing that we are doing something worthwhile with our lives. Helping to reduce the appalling consequences of world poverty should be part of that reassessment.