You realize the voter you speak to has no influence on policies right? They are right that in current america you cannot vote for 3rd parties without helping fascists get in power. However a vote for blue doesnt mean something about the system gets changed either. At least it will not make things much worse and maybe improve some other stuff. Voting for a third party will not help. The only thing that would change the political system in america is a revolution to tear the current system down. That will be bloody in america though.