Karl Marx described "useful idiots" as people who carry the Marxist ideals throughout a society or country itself, but this term can apply to anyone who believes in useless political ideals. Many young college students are bought and sold by liberal/socialist ideals like no-gun laws will stop crime in its tracks, heavy government control in our life is a good thing, and universal healthcare will solve all issues. They can be considered useful idiots because other countries around the world have proved these ideas horribly wrong, however they still blindly follow their leaders who say those things. Useful idiots believe they are fighting for "good" causes, but do not have the ability to think for themselves. If they would actually sit and think things out for a few minutes, they would realize how bad their ideas really are.
"My adherents are useful idiots." -Karl Marx
Person 1: America needs socialized medicine because thousands of people can't get healthcare, and socialized medicine will solve that issue!
Person 2: No it won't, the hospitals will just become so filled that LESS people will get help, and more people will die from curable diseases! Countries like Cuba and the U.K. have already proved this!
Person 1: No, it works! You're just a hatemonger of the poor! It works in other countries and it will work here!
Person 2: Ugh! What's the use of arguing this? You're just another useful idiot.