First and foremost, ignorance of citizens.
People simply don't do enough research before deciding on their opinion of things, especially political issues.
However, it's also true for science, math, history, etc; they take the opinion of "school is dumb and for nerds! I'll never need this! Let's forget it all immediately!" which is genuinely awful. Knowing things not only looks good to others, but it can be very interesting and in my opinion leads to a more enriching life.
oh good i'm like the only person to write an actual response