That is almost exactly what we have now. I'd hope citizen participation would be an improvement but I'm not certain. Populist positions can be good, but they can also be disastrous -- look at Trump, his brand of populism preys on the most base and vile aspects of human nature: hate, bigotry and racism and he intends on enacting policies which will inarguably be horribly destructive to the very fabric of the country and arguably the world. If we had direct democracy, what makes you think we wouldn't just get more of that? A lot of the principled stands that keep the country in one piece are not widely popular.
This is what we have now. We just have a saying on what lizard will rule.
Do you think everybody voting for Trump would vote for his hateful policies? I'm not on the US, but it looks to me that Trump gets most of his approval from his "I'm not one of the lizards" PR. If people didn't have to get the entire package, it's very likely they would be critical of those worse parts.
What is the alternative? Some aristocracy deciding matters without any consent from the citizens?
If you get any alternative that's actually better than the citizens participating, I'd love to hear it.