This is definitely true. Representative Democracy systems (and bodies like the Electoral College in the US) try to ameliorate the stupidity of the average voter, but ultimately add complexity and beauracracy to a simple idea (democracy).
Let's say I spend a lot of time prior to an election trying to understand the ballot measures and issues and candidates. Come going day, my decision is weighed just as highly as someone who watched Fox News the morning of the election, heard one of the candidates was the next Hitler and made an uninformed, fear-based decision. Ours votes are worth the same; why should I even do research then? (That's a different rant though).
I'm unfairly picking on Fox News. The vast majority of "news" is bullshit that is a distraction from the issues that an intelligent, informed electorate should care about. By turning news into entertainment, the purpose is no longer to inform and thus little of any substance is discussed by most news outlets.
So why not have a meritocracy, where only those deemed informed/an expert/smart enough get a vote? Or what if it was not one person = one vote, but rather a system where people's relative intelligences are reflected in their say in the process.
Perhaps finishing HS could earn people a second vote. Finish college, you get a third vote. If you serve in the military, you get an extra vote. Experts in a particular field could get extra votes, etc.
This seems like the rational successor to democracy. Of course this system I'm describing would need to be carefully crafted to remain fair, but I believe we can't do much worse at picking leaders and making policy decisions than we currently do in the US.