I don't think it's valid to discount the individual's power by the number of voters. If the low impact of any single vote had the sort of effect you're suggesting, people would be much more likely not to vote at all.
When a voter is just one of millions, their share of power is necessarily low. Yet the total power obviously rises linearly. (or even super-linearly, considering the outsize influence the US has in the world). Your comment also suggests that you believe people are fundamentally open to altruistic decisions. It should therefore not matter if the power they have is over themselves, or their compatriots.
I also doubt widespread agreement with the policies you mention. Answers to such survey questions depend on the phrasing more than anything. And to use one recent datapoint: we all know a recent candidate who embodied those policies more than anyone before him. Yet they actually got fewer votes than their free trade / pro-immigration opponent.
When a voter is just one of millions, their share of power is necessarily low. Yet the total power obviously rises linearly. (or even super-linearly, considering the outsize influence the US has in the world). Your comment also suggests that you believe people are fundamentally open to altruistic decisions. It should therefore not matter if the power they have is over themselves, or their compatriots.
I also doubt widespread agreement with the policies you mention. Answers to such survey questions depend on the phrasing more than anything. And to use one recent datapoint: we all know a recent candidate who embodied those policies more than anyone before him. Yet they actually got fewer votes than their free trade / pro-immigration opponent.