The impact on the outcome is identical to not voting in the US. The total number of votes doesn't matter, just how many votes other candidates got.
Even voting for someone who isn't from the two major parties is effectively equivalent to not voting in the current election. At it best may communicate a preference for certain policies that the major parties take into account in the next election cycle.
Even voting for someone who isn't from the two major parties is effectively equivalent to not voting in the current election. At it best may communicate a preference for certain policies that the major parties take into account in the next election cycle.