This strikes me as unkind. It's true of some, surely. But people are just busy. The whole theory of representative democracy is that direct democracy is impractical, so we delegate most of the work to people who focus on governing. You also ignore the extent to which the average voter is energetically manipulated and actively discouraged from participation. In the 2020 election cycle alone, There was $14.4 billion in direct spending alone. That's ~$90 per voter.

If we want more people to engage, wishing for better humans won't get us anywhere. We should do just like we do for tech products: figure out how to make useful behaviors easier.