I agree that it’s dumb to vote their party in the presidential election and think that will change things. But the presidential election is not the only election. You have local ones that you have a much greater say in, have much more potential influence over, and where you can start to make a difference and where working to get a third party in (or better yet, change the voting system to make it not tend towards two parties) is your best bet, and the poster has a point.