Though clearly I think most Republican voters are pretty explicit about it. At least the ones I have met. This is kind of the undertone to "America First" really.
EDIT: And I'd add that many often seem to have the attitude that this extends to other countries in the American sphere of influence; even self-style liberals will make comments ot the effect that Canada or France or Germany etc are all benefiting from the US's world dominance and that we basically "owe them one"; as if this isn't in reality a two-sided coin where the US gets ... plenty... in return
